Question: who is the police chief on stranger things
[{'answer': 'Jim Hopper', 'provenance': [{'wikipedia_id': '11452081', 'title': 'David Harbour', 'start_paragraph_id': 1, 'start_character': 98, 'end_paragraph_id': 1, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]