I can now use keyword in concept definition and parsing

tests/parsers/test_AtomsParser.py

@@ -215,6 +215,24 @@ class TestAtomsParser(TestUsingMemoryBasedSheerka):
         expected_array = compute_expected_array(concepts_map, "one", ["one"])
         assert lexer_nodes == expected_array
 
+    def test_i_can_parse_concepts_with_keyword(self):
+        concepts_map = {
+            "a special concept": Concept("a special concept"),
+            "isa": Concept("isa"),
+        }
+
+        sheerka, context, parser = self.init_parser(concepts_map)
+
+        res = parser.parse(context, "a special concept")
+        lexer_nodes = res.body.body
+        expected_array = compute_expected_array(concepts_map, "a special concept", ["a special concept"])
+        assert lexer_nodes == expected_array
+
+        res = parser.parse(context, "isa")
+        lexer_nodes = res.body.body
+        expected_array = compute_expected_array(concepts_map, "isa", ["isa"])
+        assert lexer_nodes == expected_array
+
     @pytest.mark.parametrize("text", [
         "foo",
         f"foo one",