Question: who sang the theme tune to robin hood
[{'answer': 'Dick James', 'provenance': [{'wikipedia_id': '277284', 'title': 'The Adventures of Robin Hood (TV series)', 'start_paragraph_id': 75, 'start_character': 75, 'end_paragraph_id': 75, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Production details.:Music.:Closing theme song.\n'}]}, {'provenance': [{'wikipedia_id': '277284', 'title': 'The Adventures of Robin Hood (TV series)', 'start_paragraph_id': 75, 'start_character': 0, 'end_paragraph_id': 75, 'end_character': 122, 'bleu_score': 0.9146912192286941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12567150111205574663}, 'section': 'Section::::Production details.:Music.:Closing theme song.\n'}]}]