Question: what does serena williams do for a living
[{'answer': 'professional tennis player', 'provenance': [{'wikipedia_id': '164910', 'title': 'Serena Williams', 'start_paragraph_id': 1, 'start_character': 64, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '164910', 'title': 'Serena Williams', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 545, 'bleu_score': 0.703026282238153, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16079451503346572373}, 'section': 'Section::::Abstract.'}]}]