Question: who does a quarterback throw the ball to
[{'answer': 'half back', 'provenance': [{'wikipedia_id': '25277', 'title': 'Quarterback', 'start_paragraph_id': 67, 'start_character': 12, 'end_paragraph_id': 67, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::See also.\n'}]}, {'answer': 'full back'}, {'answer': 'eligible receiver', 'provenance': [{'wikipedia_id': '25277', 'title': 'Quarterback', 'start_paragraph_id': 4, 'start_character': 514, 'end_paragraph_id': 4, 'end_character': 531, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '25277', 'title': 'Quarterback', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 747, 'bleu_score': 0.676974838694373, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12216124577377977472}, 'section': 'Section::::Overview.\n'}]}]