Who was referred to as the Prince of Cats and killed Mercutio in Romeo and Juliet?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q6581097', 'id': 0, 'label': 'male'}, {'type': 'INTERNAL', 'name_': 'Q692', 'id': 1, 'label': 'William Shakespeare'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q83186', 'id': 2, 'label': 'Romeo and Juliet'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q1767900', 'id': 3, 'label': 'Mercutio'}], 'links': [{'name_': 'P21', 'source': 1, 'target': 0, 'label': 'sex or gender'}, {'name_': 'P800', 'source': 1, 'target': 2, 'label': 'notable work'}, {'name_': 'P50', 'source': 2, 'target': 1, 'label': 'author'}, {'name_': 'P4969', 'source': 2, 'target': 2, 'label': 'derivative work'}, {'name_': 'P674', 'source': 2, 'target': 3, 'label': 'characters'}, {'name_': 'P21', 'source': 3, 'target': 0, 'label': 'sex or gender'}, {'name_': 'P170', 'source': 3, 'target': 1, 'label': 'creator'}, {'name_': 'P1441', 'source': 3, 'target': 2, 'label': 'present in work'}]}