Question: who played pink in pink floyd the wall
[{'answer': 'Bob Geldof', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 35, 'start_character': 682, 'end_paragraph_id': 35, 'end_character': 692, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}, {'answer': 'Kevin McKeon', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 13, 'start_character': 12, 'end_paragraph_id': 13, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'David Bingham', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 14, 'start_character': 12, 'end_paragraph_id': 14, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Bob Geldof as Pink', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 12, 'start_character': 12, 'end_paragraph_id': 12, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Kevin McKeon as Young Pink', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 13, 'start_character': 12, 'end_paragraph_id': 13, 'end_character': 38, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'David Bingham as Little Pink', 'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd – The Wall', 'start_paragraph_id': 14, 'start_character': 12, 'end_paragraph_id': 14, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '1539714', 'title': 'Pink Floyd  The Wall', 'section': 'Section::::Release.\n', 'start_paragraph_id': 43, 'end_paragraph_id': 43, 'meta': {'evidence_span': ['including Geldof, Scarfe, Paula Yates, Pete Townshend, Sting, Roger Taylor, James Hunt, Lulu and Andy Summers. The film opened with a limited release on 6 August 1982 and entered at No. 28', "The film's official premiere was at the Empire, Leicester Square in London, on 14 July 1982. It was attended by Waters and fellow Pink Floyd members David Gilmour and Nick Mason, but not Richard Wright, who was no longer a member of the band. It was also attended by various celebrities including Geldof, Scarfe, Paula Yates, Pete Townshend, Sting, Roger Taylor, James Hunt, Lulu and Andy Summers. The film opened with a limited release on 6 August 1982 and entered at No. 28 of the US box"]}}]}]