Question: who sang on great gig in the sky
[{'answer': 'Pink Floyd', 'provenance': [{'wikipedia_id': '572011', 'title': 'The Great Gig in the Sky', 'start_paragraph_id': 1, 'start_character': 130, 'end_paragraph_id': 1, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Clare Torry', 'provenance': [{'wikipedia_id': '572011', 'title': 'The Great Gig in the Sky', 'start_paragraph_id': 1, 'start_character': 210, 'end_paragraph_id': 1, 'end_character': 221, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '572011', 'title': 'The Great Gig in the Sky', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17995143332491801424}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '572011', 'title': 'The Great Gig in the Sky', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 221, 'bleu_score': 0.890257934258152, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17995143332491801424}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1233560', 'title': 'Clare Torry', 'section': 'Section::::Career.\n', 'start_paragraph_id': 6, 'end_paragraph_id': 6, 'meta': {'evidence_span': ['On 4 November 1973, Torry also sang "The Great Gig in the Sky" at the Rainbow Theatre in London. Since then, Torry has also performed as a session singer (singing on a number of 1970s UK TV adverts) and as a live backing vocalist with Kevin Ayers, Olivia Newton-John, Shriekback,', 'She reprised her Pink Floyd appearance during a few 1980s concerts with Roger Waters\' band, and also contributed to Waters\' 1986 soundtrack "When the Wind Blows" and to his 1987 album "Radio K.A.O.S.". She sang with the David Gilmour-led Pink Floyd at a 1990 concert at Knebworth.']}}]}, {'provenance': [{'wikipedia_id': '572011', 'title': 'The Great Gig in the Sky', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['"The Great Gig in the Sky" is the fifth track on "The Dark Side of the Moon", the 1973 album by the English progressive rock band Pink Floyd. The song features music by Richard Wright and non-lexical vocals by Clare Torry.', 'The Great Gig in the Sky" is the fifth track on "The Dark Side of the Moon", the 1973 album by the English progressive rock band Pink Floyd. The song features music by Richard Wright and non-lexical vocals by Clare Torry', '"The Great Gig in the Sky" is the fifth track on "The Dark Side of the Moon", the 1973 album by the English progressive rock band Pink Floyd. The song features music by Richard Wright and non-lexical vocals by Clare Torry.']}}]}]