Fixed SyaNodeParser false positive recognition issue

src/parsers/AtomNodeParser.py

@@ -91,7 +91,7 @@ class AtomConceptParserHelper:
 
         self.debug.append(token)
 
-        if self.expected_tokens[0] != BaseNodeParser.get_token_value(token):
+        if self.expected_tokens[0] != token.str_value:
             self.errors.append(UnexpectedTokenErrorNode(
                 f"Found '{token}' while expecting '{self.expected_tokens[0]}'",
                 token,
@@ -119,7 +119,7 @@ class AtomConceptParserHelper:
             forked.eat_concept(concept, pos)
 
         concept_node = ConceptNode(concept, pos, pos)
-        expected = [BaseNodeParser.get_token_value(t) for t in Tokenizer(concept.name)][1:-1]
+        expected = [t.str_value for t in Tokenizer(concept.name)][1:-1]
 
         if not expected:
             # the concept is already matched