Question: who pitched the first game of the world series 2017
[{'answer': 'Keuchel', 'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 25, 'start_character': 169, 'end_paragraph_id': 25, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Game summaries.:Game 1.\n'}]}, {'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 26, 'start_character': 0, 'end_paragraph_id': 26, 'end_character': 487, 'bleu_score': 0.595146409019054, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8454753177638438678}, 'section': 'Section::::Game summaries.:Game 1.\n'}]}]