Question: who sang in the court of the crimson king
[{'answer': 'King Crimson', 'provenance': [{'wikipedia_id': '822255', 'title': 'In the Court of the Crimson King', 'start_paragraph_id': 1, 'start_character': 62, 'end_paragraph_id': 1, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '822255', 'title': 'In the Court of the Crimson King', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 443, 'bleu_score': 0.793803905758496, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2278907033413060221}, 'section': 'Section::::Abstract.'}]}]