Question: who won the world series in 2017 baseball
[{'answer': 'The Astros', 'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 699, 'bleu_score': 0.8351246433403131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4635991681264758526}, 'section': 'Section::::Abstract.'}]}]