Question: who sings long cool woman in a black dress
[{'answer': 'The Hollies', 'provenance': [{'wikipedia_id': '2549328', 'title': 'Long Cool Woman in a Black Dress', 'start_paragraph_id': 1, 'start_character': 214, 'end_paragraph_id': 1, 'end_character': 225, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]