Question: who was suite judy blue eyes written about
[{'answer': 'singer / songwriter Judy Collins', 'provenance': [{'wikipedia_id': '1542218', 'title': 'Suite: Judy Blue Eyes', 'start_paragraph_id': 3, 'start_character': 124, 'end_paragraph_id': 3, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'answer': 'Judy Collins', 'provenance': [{'wikipedia_id': '1542218', 'title': 'Suite: Judy Blue Eyes', 'start_paragraph_id': 3, 'start_character': 142, 'end_paragraph_id': 3, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'answer': "Stephen Stills ' former girlfriend , singer / songwriter Judy Collins"}, {'provenance': [{'wikipedia_id': '1542218', 'title': 'Suite: Judy Blue Eyes', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 797, 'bleu_score': 0.788140152242057, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1556244361818317371}, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '1542218', 'title': 'Suite: Judy Blue Eyes', 'section': 'Section::::Background.\n', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['singer/songwriter', 'The title "Suite: Judy Blue Eyes" (a play on words for "Sweet Judy Blue Eyes") refers to Stephen Stills\' former girlfriend, singer/songwriter Judy Collins, and the lyrics to most of the suite\'s sections consist of his thoughts about her and their imminent breakup.', 'The title "Suite: Judy Blue Eyes" (a play on words for "Sweet Judy Blue Eyes") refers to Stephen Stills\' former girlfriend, singer/songwriter Judy Collins, and the lyrics to most of the suite\'s sections consist of his thoughts about her and their imminent breakup. Collins is known for her piercing blue eyes. During a July 15, 2007 interview for the National Public Radio program "All Things Considered", Stills revealed that Collins was present in the studio when the demo tapes were recorded and had advised him, "Don\'t stay in here [in the studio] all night now." Stills also commented that the breakup with Collins "was imminent. ... We were just a little too big for one house." Stills said that he liked parts of this demo version of "Suite: Judy Blue Eyes" better than the released version; the song and other demos of early Crosby, Stills and Nash songs were released commercially on the album "Just Roll Tape".']}}]}]