diff --git a/eo-parser/src/test/resources/org/eolang/parser/ebnf/to-ebnf.xsl b/eo-parser/src/test/resources/org/eolang/parser/ebnf/to-ebnf.xsl
index 5eed4a994f..28e9e8053b 100644
--- a/eo-parser/src/test/resources/org/eolang/parser/ebnf/to-ebnf.xsl
+++ b/eo-parser/src/test/resources/org/eolang/parser/ebnf/to-ebnf.xsl
@@ -59,16 +59,25 @@ SOFTWARE.
}
- (
+
+ (
+
- ) {
+
+ )
+
+ {
}
- (
+
+ (
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+
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+
(
@@ -113,20 +122,32 @@ SOFTWARE.
- \textbackslash{}
+
+ \textbackslash{}
+
+
+ t
+
+
+ n
+
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+ r
+
+
+ x
+
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-
- t
-
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- n
-
-
- r
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- x
-
+ "
+
+ "