Question: who wrote the song cats in the cradle
[{'answer': 'Harry Chapin', 'provenance': [{'wikipedia_id': '1573829', 'title': "Cat's in the Cradle", 'start_paragraph_id': 1, 'start_character': 50, 'end_paragraph_id': 1, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Sandra Chapin'}]