Question: who plays the flash on the tv show
[{'answer': 'Grant Gustin', 'provenance': [{'wikipedia_id': '41844524', 'title': 'The Flash (2014 TV series)', 'start_paragraph_id': 1, 'start_character': 391, 'end_paragraph_id': 1, 'end_character': 403, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41844524', 'title': 'The Flash (2014 TV series)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 553, 'bleu_score': 0.931506586060527, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12057660138769553955}, 'section': 'Section::::Abstract.'}]}]