Question: what is the name given to the chief religious leader of a synagogue
[{'answer': 'rabbi', 'provenance': [{'wikipedia_id': '1262073', 'title': 'Jewish leadership', 'start_paragraph_id': 6, 'start_character': 465, 'end_paragraph_id': 6, 'end_character': 470, 'bleu_score': 1.0, 'section': 'Section::::Historic leadership.:Mishnaic, Talmudic, Middle Ages leadership (70 to 17th century).\n'}]}, {'provenance': [{'wikipedia_id': '1262073', 'title': 'Jewish leadership', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 810, 'bleu_score': 0.984188478234951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13309204689132739532}, 'section': 'Section::::Modern religious leadership (after 19th century).:Modern Synagogue leadership.\n'}]}]