Question: former world no 1 tennis player who coached roger federer
[{'answer': 'Anthony Dalton Roche', 'provenance': [{'wikipedia_id': '870020', 'title': 'Tony Roche', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '870020', 'title': 'Tony Roche', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 515, 'bleu_score': 0.950027409461844, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14138935842394246592}, 'section': 'Section::::Abstract.'}]}]