Question: who was the first black man to play in the nhl
[{'answer': "Willie Eldon O'Ree", 'provenance': [{'wikipedia_id': '446073', 'title': "Willie O'Ree", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '446073', 'title': "Willie O'Ree", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 484, 'bleu_score': 0.8987299615221761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8523794212191560085}, 'section': 'Section::::Abstract.'}]}]