def test_multiple_conjs(self):
        sent = ParentedTree.fromstring(
            '((A (B b) (C c)) (A (B b) (C c) (D d)))')
        # search = '(A < B < C < D)'
        # search_tworels = '(A < B < C)'
        self.assertEqual(list(tgrep.tgrep_positions('(A < B < C < D)', [sent])),
                         [[(1,)]])
        self.assertEqual(list(tgrep.tgrep_positions('(A < B < C)', [sent])),
                         [[(0,), (1,)]])
Test that multiple (3 or more) conjunctions of node relations are
dataset/ETHPy150Open nltk/nltk/nltk/test/unit/test_tgrep.py/TestSequenceFunctions.test_multiple_conjs