diff --git a/README.md b/README.md
index 855cd45e..d70d938a 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,9 @@ Node-RED Watson Nodes for IBM Bluemix
 
 <a href="https://cla-assistant.io/watson-developer-cloud/node-red-node-watson"><img src="https://cla-assistant.io/readme/badge/watson-developer-cloud/node-red-node-watson" alt="CLA assistant" /></a>
 
+### New in version 0.5.11
+- Add support for NLP Query in Discovery and Discovery Query Builder Nodes.
+
 ### New in version 0.5.10
 - Allowed detect_mode for Visual Recognition node to be set in msg.params
 
diff --git a/package.json b/package.json
index 2229be25..9ae6041c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-red-node-watson",
-  "version": "0.5.10",
+  "version": "0.5.11",
   "description": "A collection of Node-RED nodes for IBM Watson services",
   "dependencies": {
     "alchemy-api": "^1.3.0",
diff --git a/services/conversation/v1.html b/services/conversation/v1.html
index 52cd75c2..da0ac7d9 100644
--- a/services/conversation/v1.html
+++ b/services/conversation/v1.html
@@ -99,7 +99,6 @@
     </ul>
 </script>
 
-
 <script type="text/javascript">
     var oneditprepare = function() {
         $('input#node-input-context').change(function () {
diff --git a/services/discovery/discovery-utils.js b/services/discovery/discovery-utils.js
index 28447ff3..120f1309 100644
--- a/services/discovery/discovery-utils.js
+++ b/services/discovery/discovery-utils.js
@@ -34,6 +34,21 @@ DiscoveryUtils.prototype = {
     return params;
   },
 
+  buildParamsForQuery: function(msg, config, params) {
+    var sourceField = 'query',
+      targetField = 'query';
+
+    if (config.nlp_query || msg.discoveryparams.nlp_query) {
+      targetField = 'natural_language_query';
+    }
+    if (msg.discoveryparams && msg.discoveryparams[sourceField]) {
+      params[targetField] = msg.discoveryparams[sourceField];
+    } else if (config[sourceField]) {
+      params[targetField] = config[sourceField];
+    }
+    return params;
+  },
+
   buildParamsForPayload: function(msg, config, params) {
     var isJSON = this.isJsonString(msg.payload) ||
       this.isJsonObject(msg.payload);
@@ -67,11 +82,12 @@ DiscoveryUtils.prototype = {
     var params = {},
       me = this;
 
-    params = this.buildParamsForName(msg, config, params);
+    params = me.buildParamsForName(msg, config, params);
+    params = me.buildParamsForQuery(msg, config, params);
 
     ['environment_id', 'collection_id', 'configuration_id',
       'collection_name',
-      'query', 'passages', 'description', 'size'
+      'passages', 'description', 'size'
     ].forEach(function(f) {
       params = me.buildParamsFor(msg, config, params, f);
     });
@@ -93,6 +109,27 @@ DiscoveryUtils.prototype = {
     if (config.collection) {
       params.collection_id = config.collection;
     }
+
+    if (config.passages) {
+      params.passages = config.passages;
+    }
+
+    params = this.buildMsgQueryOverrides(msg, config, params);
+
+    return params;
+  },
+
+  buildMsgQueryOverrides: function(msg, config, params) {
+    if (config.nlp_query) {
+      params.query = config.querynlp;
+      params.nlp_query = config.nlp_query;
+    } else {
+      params = this.buildStructuredQuery(msg, config, params);
+    }
+    return params;
+  },
+
+  buildStructuredQuery: function(msg, config, params) {
     if (config.query1 && config.queryvalue1) {
       params.query = config.query1 + ':"' + config.queryvalue1 + '"';
     }
@@ -108,13 +145,10 @@ DiscoveryUtils.prototype = {
       }
       params.query += config.query3 + ':"' + config.queryvalue3 + '"';
     }
-    if (config.passages) {
-      params.passages = config.passages;
-    }
-
     return params;
   },
 
+
   paramEnvCheck: function(params) {
     var response = '';
     if (!params.environment_id) {
diff --git a/services/discovery/v1-query-builder.html b/services/discovery/v1-query-builder.html
index 0d3a5773..8fd8b482 100644
--- a/services/discovery/v1-query-builder.html
+++ b/services/discovery/v1-query-builder.html
@@ -67,6 +67,32 @@
         <input type="hidden" id="node-input-collectionhidden"/>
     </div>
 
+    <div class="form-row">
+        <label>&nbsp;</label>
+        <input type="checkbox" id="node-input-passages" style="display: inline-block; width: auto; vertical-align: top;">
+        <label for="node-input-passages" style="width: 70%;"> Passages</label>
+    </div>
+    <div>
+        <input type="hidden" id="node-input-passageshidden"/>
+    </div>
+
+    <div class="form-row">
+        <label>&nbsp;</label>
+        <input type="checkbox" id="node-input-nlp_query" style="display: inline-block; width: auto; vertical-align: top;">
+        <label for="node-input-nlp_query" style="width: 70%;"> Query in Plain Language</label>
+    </div>
+    <div>
+        <input type="hidden" id="node-input-nlp_queryhidden"/>
+    </div>
+
+    <div class="form-row">
+        <label for="node-input-querynlp"><i class="fa fa-book"></i> NLP Query </label>
+        <input type="text" id="node-input-querynlp" placeholder="">
+    </div>
+    <div>
+        <input type="hidden" id="node-input-querynlphidden"/>
+    </div>
+
     <div class="form-row">
         <label for="node-input-query1"><i class="fa fa-book"></i> Query Key 1</label>
         <select type="text" id="node-input-query1" style="display: inline-block; vertical-align:middle; width: 70%;">
@@ -100,15 +126,6 @@
         <input type="hidden" id="node-input-queryvalue3hidden"/>
     </div>
 
-    <div class="form-row">
-        <label>&nbsp;</label>
-        <input type="checkbox" id="node-input-passages" style="display: inline-block; width: auto; vertical-align: top;">
-        <label for="node-input-passages" style="width: 70%;"> Passages</label>
-    </div>
-    <div>
-        <input type="hidden" id="node-input-passageshidden"/>
-    </div>
-
 </script>
 
 <script type="text/x-red" data-help-name="watson-discovery-v1-query-builder">
@@ -150,14 +167,17 @@
     disQB.query2_selected = $('#node-input-query2hidden').val();
     disQB.query3_selected = $('#node-input-query3hidden').val();
     disQB.passages_selected = $('#node-input-passageshidden').val();
+    disQB.nlp_query_selected = $('#node-input-nlp_queryhidden').val();
 
     // Nothing is to be shown unless the values to show in the listCollections
     // can be obtained from the service.
     disQB.hideAll = function() {
       $('#credentials-not-found').show();
+      cv1wm.hideSelectedFields(fields);
       $('#something-went-wrong').hide();
       $('#node-input-environment').parent().hide();
       $('#node-input-collection').parent().hide();
+      $('#node-input-querynlp').parent().hide();
       $('#node-input-query1').parent().hide();
       $('#node-input-query2').parent().hide();
       $('#node-input-query3').parent().hide();
@@ -169,6 +189,12 @@
       }
     }
 
+    disQB.hideSelectedFields = function(fields) {
+      for (i = 0; i < fields.length; i++) {
+        $(fields[i]).parent().hide();
+      }
+    }
+
     // Set up listeners for the select lists to determine if the subsequent
     // list boxes need refreshing. ie. A change in selected Envionment, needs
     // the collection list to be revised. A change in selected collection, needs
@@ -216,6 +242,21 @@
         disQB.query3_selected = $('#node-input-query3').val();
       });
 
+      $('input#node-input-nlp_query').change(function () {
+          var checked = $('input#node-input-nlp_query').prop('checked');
+          if (checked) {
+            $('#node-input-querynlp').parent().show();
+            $('#node-input-query1').parent().hide();
+            $('#node-input-query2').parent().hide();
+            $('#node-input-query3').parent().hide();
+          } else {
+            $('#node-input-querynlp').parent().hide();
+            $('#node-input-query1').parent().show();
+            $('#node-input-query2').parent().show();
+            $('#node-input-query3').parent().show();
+          }
+      });
+
     }
 
     // The dialog is about to be shown.
@@ -372,9 +413,12 @@
     // three query switch lists can be shown.
     disQB.showSchemas = function () {
       if (disQB.schemas && disQB.schemaCheck()) {
-        $('select#node-input-query1').parent().show();
-        $('select#node-input-query2').parent().show();
-        $('select#node-input-query3').parent().show();
+        var checked = $('input#node-input-nlp_query').prop('checked');
+        if (!checked) {
+          $('select#node-input-query1').parent().show();
+          $('select#node-input-query2').parent().show();
+          $('select#node-input-query3').parent().show();
+        }
         disQB.populateSchemas();
       }
     }
@@ -497,32 +541,37 @@
     // they can be restored.
     disQB.restoreHidden = function () {
       disQB.environment_selected = $('#node-input-environmenthidden').val();
-      $('select#node-input-environment').val(disQB.environment_selected);
+      $('#node-input-environment').val(disQB.environment_selected);
 
       disQB.collection_selected = $('#node-input-collectionhidden').val();
-      $('select#node-input-collection').val(disQB.collection_selected);
+      $('#node-input-collection').val(disQB.collection_selected);
+
+      disQB.querynlp_selected = $('#node-input-querynlphidden').val();
+      $('#node-input-querynlp').val(disQB.querynlp_selected);
 
       disQB.query1_selected = $('#node-input-query1hidden').val();
-      $('select#node-input-query1').val(disQB.query1_selected);
+      $('#node-input-query1').val(disQB.query1_selected);
 
       disQB.queryvalue1_selected = $('#node-input-queryvalue1hidden').val();
-      $('select#node-input-queryvalue1').val(disQB.queryvalue1_selected);
+      $('#node-input-queryvalue1').val(disQB.queryvalue1_selected);
 
       disQB.query2_selected = $('#node-input-query2hidden').val();
-      $('select#node-input-query2').val(disQB.query2_selected);
+      $('#node-input-query2').val(disQB.query2_selected);
 
       disQB.queryvalue2_selected = $('#node-input-queryvalue2hidden').val();
-      $('select#node-input-queryvalue2').val(disQB.queryvalue2_selected);
+      $('#node-input-queryvalue2').val(disQB.queryvalue2_selected);
 
       disQB.query3_selected = $('#node-input-query3hidden').val();
-      $('select#node-input-query3').val(disQB.query3_selected);
+      $('#node-input-query3').val(disQB.query3_selected);
 
       disQB.queryvalue3_selected = $('#node-input-queryvalue3hidden').val();
-      $('select#node-input-queryvalue3').val(disQB.queryvalue3_selected);
+      $('#node-input-queryvalue3').val(disQB.queryvalue3_selected);
 
       disQB.passages_selected = $('#node-input-passageshidden').val();
-      $('inpu#node-input-passages').val(disQB.passages_selected);
+      $('#node-input-passages').val(disQB.passages_selected);
 
+      disQB.nlp_query_selected = $('#node-input-nlp_queryhidden').val();
+      $('#node-input-nlp_query').val(disQB.nlp_query_selected);
     }
 
 
@@ -579,6 +628,9 @@
       disQB.collection_selected = $('#node-input-collection').val();
       $('#node-input-collectionhidden').val(disQB.collection_selected);
 
+      disQB.querynlp_selected = $('#node-input-querynlp').val();
+      $('#node-input-querynlphidden').val(disQB.querynlp_selected);
+
       disQB.query1_selected = $('#node-input-query1').val();
       $('#node-input-query1hidden').val(disQB.query1_selected);
 
@@ -599,6 +651,9 @@
 
       disQB.passages_selected = $('#node-input-passages').val();
       $('#node-input-passageshidden').val(disQB.passages_selected);
+
+      disQB.nlp_query_selected = $('#node-input-nlp_query').val();
+      $('#node-input-nlp_queryhidden').val(disQB.nlp_query_selected);
     }
 
     (function() {
@@ -611,6 +666,10 @@
                 environmenthidden: {value: ''},
                 collection: {value: ''},
                 collectionhidden: {value: ''},
+                nlp_query: {value: 'true'},
+                nlp_queryhidden: {value: 'true'},
+                querynlp: {value: ''},
+                querynlphidden: {value: ''},
                 query1: {value: ''},
                 query1hidden: {value: ''},
                 queryvalue1: {value: ''},
diff --git a/services/discovery/v1.html b/services/discovery/v1.html
index 35e349b0..b819f428 100644
--- a/services/discovery/v1.html
+++ b/services/discovery/v1.html
@@ -36,6 +36,7 @@
     <div class="form-row">
         <label for="node-input-discovery-method"><i class="fa fa-book"></i> Method: </label>
         <select type="text" id="node-input-discovery-method" style="display: inline-block; width: 70%;">
+            <option value="query">Search in collection</option>
             <option value="createEnvrionment">Create new environment</option>
             <option value="listEnvrionments">List existing environments</option>
             <option value="getEnvironmentDetails">Retrieve environment details</option>
@@ -45,7 +46,6 @@
             <option value="createConfiguration">Create new configuration</option>
             <option value="listConfigurations">List existing configurations</option>
             <option value="getConfigurationDetails">Retrieve configuration details</option>
-            <option value="query">Search in collection</option>
         </select>
     </div>
 
@@ -84,10 +84,18 @@
         <label for="node-input-passages" style="width: 70%;"> Passages</label>
     </div>
 
+    <div class="form-row">
+        <label>&nbsp;</label>
+        <input type="checkbox" id="node-input-nlp_query" style="display: inline-block; width: auto; vertical-align: top;">
+        <label for="node-input-nlp_query" style="width: 70%;"> Query in Plain Language</label>
+    </div>
+
     <div class="form-row">
         <label for="node-input-query"><i class="fa fa-tag"></i> Query for Search</label>
         <input type="text" id="node-input-query" placeholder="">
     </div>
+
+
     <div class="form-row">
         <label for="node-input-filter"><i class="fa fa-tag"></i> Filter for Search</label>
         <input type="text" id="node-input-filter" placeholder="">
@@ -279,6 +287,7 @@
       $('#node-input-configuration_id').parent().hide();
       $('#node-input-count').parent().hide();
       $('#node-input-passages').parent().hide();
+      $('#node-input-nlp_query').parent().hide();
       $('#node-input-query').parent().hide();
       $('#node-input-filter').parent().hide();
       $('#node-input-aggregation').parent().hide();
@@ -333,6 +342,7 @@
                          + ', #node-input-collection_id'
                          + ', #node-input-count'
                          + ', #node-input-passages'
+                         + ', #node-input-nlp_query'
                          + ', #node-input-query'
                          + ', #node-input-filter'
                          + ', #node-input-aggregation'
@@ -372,37 +382,38 @@
         RED.nodes.registerType('watson-discovery-v1', {
             category: 'IBM Watson',
             defaults: {
-                name: {value: ""},
-                environmentname: {value: ""},
-                environment_id: {value: ""},
-                collection_id: {value: ""},
-                configurationname: {value: ""},
-                configuration_id: {value: ""},
-                collection_name: {value: ""},
-                count: {value: "1"},
-                passages: {value: "false"},
-                query: {value: ""},
-                filter: {value: ""},
-                aggregation: {value: ""},
-                return: {value: ""},
-                description: {value: ""},
+                name: {value: ''},
+                environmentname: {value: ''},
+                environment_id: {value: ''},
+                collection_id: {value: ''},
+                configurationname: {value: ''},
+                configuration_id: {value: ''},
+                collection_name: {value: ''},
+                count: {value: '1'},
+                passages: {value: 'false'},
+                nlp_query: {value: 'false'},
+                query: {value: ''},
+                filter: {value: ''},
+                aggregation: {value: ''},
+                return: {value: ''},
+                description: {value: ''},
                 size: {value: 0},
-                "discovery-method": {value:"listEnvrionments"}
+                'discovery-method': {value:'listEnvrionments'}
             },
             credentials: {
-              username: {type:"text"},
-              password: {type:"password"}
+              username: {type:'text'},
+              password: {type:'password'}
             },
-            color: "rgb(230,140,80)",
+            color: 'rgb(230,140,80)',
             inputs: 1,
             outputs: 1,
-            icon: "discovery.png",
-            paletteLabel: "discovery",
+            icon: 'discovery.png',
+            paletteLabel: 'discovery',
             label: function() {
-                return this.name || "discovery";
+                return this.name || 'discovery';
             },
             labelStyle: function() {
-                return this.name ? "node_label_italic" : "";
+                return this.name ? 'node_label_italic' : '';
             },
             oneditprepare: oneditprepare
         });
diff --git a/services/language_translator_identify/v2.html b/services/language_translator_identify/v2.html
index a32693b7..c03aaabe 100644
--- a/services/language_translator_identify/v2.html
+++ b/services/language_translator_identify/v2.html
@@ -46,7 +46,7 @@
 </script>
 
 <script type="text/x-red" data-help-name="watson-language-translator-identify">
-    <p>Packaged in with release 0.5.9 of node-red-node-watson</p>
+    <p>Packaged in with release 0.5.11 of node-red-node-watson</p>
     <p>The Watson Language Translator service can be used to identify languages used in a text input. <p>
     <p>Node input : </p>
     <ul>