Question: who is in the imagine dragons believer video
[{'answer': 'Dan Reynolds', 'provenance': [{'wikipedia_id': '53056039', 'title': 'Believer (Imagine Dragons song)', 'start_paragraph_id': 1, 'start_character': 236, 'end_paragraph_id': 1, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Dolph Lundgren', 'provenance': [{'wikipedia_id': '53056039', 'title': 'Believer (Imagine Dragons song)', 'start_paragraph_id': 8, 'start_character': 161, 'end_paragraph_id': 8, 'end_character': 175, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'provenance': [{'wikipedia_id': '53056039', 'title': 'Believer (Imagine Dragons song)', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 677, 'bleu_score': 0.8929070657033871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8361561851721406002}, 'section': 'Section::::Music video.\n'}]}]