Fixed SyaNodeParser false positive recognition issue

tests/core/test_concept.py

@@ -12,10 +12,10 @@ from core.concept import Concept, ConceptParts, DEFINITION_TYPE_DEF
     ("foo", ["foo"], "foo"),
     ("foo a", ["foo"], "__var__0 a"),
     ("foo       a   b", ["a"], "foo __var__0 b"),
-    ("'foo'", [], "foo"),
+    ("'foo'", [], "'foo'"),
     ("my name is a", ["a"], "my name is __var__0"),
     ("a b c d", ["b", "c"], "a __var__0 __var__1 d"),
-    ("a 'b c' d", ["b", "c"], "a b c d"),
+    ("a 'b c' d", ["b", "c"], "a 'b c' d"),
     ("a | b", ["a", "b"], "__var__0 | __var__1"),
     ("a b a c", ["a", "b"], "__var__0 __var__1 __var__0 c"),
     ("a b a c", ["b", "a"], "__var__1 __var__0 __var__1 c"),