Fixed SyaNodeParser false positive recognition issue

src/core/concept.py

@@ -221,7 +221,7 @@ class Concept:
         Create the key for this concept.
         Must be called only when the concept if fully initialized
 
-        The method is not called set_key to make sure that no other class set the key by mistake
+        The method is not called 'set_key' to make sure that no other class set the key by mistake
         :param tokens:
         :return:
         """
@@ -248,8 +248,8 @@ class Concept:
             if token.value in variables:
                 key += VARIABLE_PREFIX + str(variables.index(token.value))
             else:
-                value = token.value[1:-1] if token.type == TokenKind.STRING else token.value
-                key += value
+                #value = token.value[1:-1] if token.type == TokenKind.STRING else token.value
+                key += token.value
             first = False
 
         self.metadata.key = key