Question: who did the free throw line dunk first
[{'answer': 'Jim Pollard', 'provenance': [{'wikipedia_id': '147733', 'title': 'Slam dunk', 'start_paragraph_id': 38, 'start_character': 14, 'end_paragraph_id': 38, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Dunk modifiers.:From a distance.:Free throw line.\n'}]}, {'answer': 'Wilt Chamberlain', 'provenance': [{'wikipedia_id': '147733', 'title': 'Slam dunk', 'start_paragraph_id': 6, 'start_character': 597, 'end_paragraph_id': 6, 'end_character': 613, 'bleu_score': 1.0, 'section': 'Section::::Introduction.\n'}]}, {'provenance': [{'wikipedia_id': '147733', 'title': 'Slam dunk', 'start_paragraph_id': 38, 'start_character': 0, 'end_paragraph_id': 38, 'end_character': 418, 'bleu_score': 0.9267806344830251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2558407974345613998}, 'section': 'Section::::Dunk modifiers.:From a distance.:Free throw line.\n'}]}]