Question: who is the host of finding your roots
[{'answer': 'Henry Louis Gates Jr.', 'provenance': [{'wikipedia_id': '35823754', 'title': 'Finding Your Roots', 'start_paragraph_id': 1, 'start_character': 92, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '35823754', 'title': 'Finding Your Roots', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 480, 'bleu_score': 0.7908508440590181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 209904823832152129}, 'section': 'Section::::Abstract.'}]}]