Question: who has the most number one single hits
[{'answer': 'The Beatles', 'provenance': [{'wikipedia_id': '2654171', 'title': 'List of Billboard Hot 100 chart achievements and milestones', 'start_paragraph_id': 245, 'start_character': 2, 'end_paragraph_id': 245, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Artist achievements.:Self-replacement at number one.\n'}]}, {'provenance': [{'wikipedia_id': '2654171', 'title': 'List of Billboard Hot 100 chart achievements and milestones', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2275445789694542776}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2654171', 'title': 'List of Billboard Hot 100 chart achievements and milestones', 'section': 'Section::::Artist achievements.:Self-replacement at number one.\n', 'start_paragraph_id': 245, 'end_paragraph_id': 245, 'meta': {'evidence_span': ['Beatles are the only act in history to have three consecutive, self-replacing #1s', 'The Beatles are the only act in history to have three consecutive, self-replacing #1s.']}}]}]