Question: who is running for us senator in texas
[{'answer': "Beto O'Rourke", 'provenance': [{'wikipedia_id': '51043442', 'title': '2018 United States Senate election in Texas', 'start_paragraph_id': 1, 'start_character': 324, 'end_paragraph_id': 1, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Incumbent Republican U.S. Senator Ted Cruz'}, {'provenance': [{'wikipedia_id': '51043442', 'title': '2018 United States Senate election in Texas', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 600, 'bleu_score': 0.7729609325922471, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14165432711505230000}, 'section': 'Section::::Abstract.'}]}]