Question: how many number ones did queen have in the uk
[{'answer': '7', 'provenance': [{'wikipedia_id': '2511761', 'title': 'List of artists by number of UK Singles Chart number ones', 'start_paragraph_id': 2, 'start_character': 553, 'end_paragraph_id': 2, 'end_character': 554, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]