Question: who wrote the poem on top of spaghetti
[{'answer': 'Sharon Ruth', 'provenance': [{'wikipedia_id': '4392720', 'title': 'On Top of Spaghetti', 'start_paragraph_id': 2, 'start_character': 209, 'end_paragraph_id': 2, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Philip Anders'}]