Question: who sings the theme song from robin hood prince of thieves
[{'answer': 'Michael Kamen', 'provenance': [{'wikipedia_id': '261402', 'title': 'Robin Hood: Prince of Thieves', 'start_paragraph_id': 18, 'start_character': 69, 'end_paragraph_id': 18, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Soundtrack.\n'}]}, {'provenance': [{'wikipedia_id': '261402', 'title': 'Robin Hood: Prince of Thieves', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 177, 'bleu_score': 0.9321022168949711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1001916100869408419}, 'section': 'Section::::Soundtrack.\n'}]}]