Question: telstar was an instrumental hit for which group
[{'answer': 'English band the Tornados', 'provenance': [{'wikipedia_id': '1266160', 'title': 'Telstar (instrumental)', 'start_paragraph_id': 1, 'start_character': 74, 'end_paragraph_id': 1, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1266160', 'title': 'Telstar (instrumental)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 443, 'bleu_score': 0.8860704124195401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10412121788709176695}, 'section': 'Section::::Abstract.'}]}]