Who does Heathcliff marry in Wuthering Heights?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q202975', 'id': 0, 'label': 'Wuthering Heights'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q2499865', 'id': 1, 'label': 'Heathcliff'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q2656419', 'id': 2, 'label': 'Wuthering Heights'}], 'links': [{'name_': 'P674', 'source': 0, 'target': 1, 'label': 'characters'}, {'name_': 'P4969', 'source': 0, 'target': 2, 'label': 'derivative work'}, {'name_': 'P1441', 'source': 1, 'target': 0, 'label': 'present in work'}, {'name_': 'P144', 'source': 2, 'target': 0, 'label': 'based on'}]}