Question: who wrote all of elton john's songs
[{'answer': 'Bernard John Taupin', 'provenance': [{'wikipedia_id': '262281', 'title': 'Bernie Taupin', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '262281', 'title': 'Bernie Taupin', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 197, 'bleu_score': 0.6503175423021821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 39399445789991150}, 'section': 'Section::::Abstract.'}]}]