Question: who has the most ranking titles in snooker
[{'answer': 'Stephen Hendry', 'provenance': [{'wikipedia_id': '10682862', 'title': 'List of snooker players by number of ranking titles', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]