fix: add valid uuid4 example value

io.catenax.bom_as_specified/2.0.0/SingleLevelBomAsSpecified.ttl

@@ -112,7 +112,7 @@
     bamm:preferredName "Owner Part ID"@en;
     bamm:description "This is the key field of the component which usually keeps the part numbers used in after-sales, e.g. when repairing broken parts and searching for a replacement. This ownerPartId itself isn't usually bound to one part version, with the assumption that all part versions with the same ownerPartId are mutually interchangeable."@en;
     bamm:characteristic :CatenaXIdTrait;
-    bamm:exampleValue "uuid!".
+    bamm:exampleValue "urn:uuid:c4b1b329-07fa-4dc1-b9d0-aa753100672c".
 :partVersion a bamm:Property;
     bamm:preferredName "Part Version"@en;
     bamm:description "This is the version of the part. The engineering will at times supercede an older part version by a newer one, which might have different material aspects, physical dimensions etc., still maintaining compatibility."@en;