Question: how many cities of refuge were the israelites to form
[{'answer': 'six', 'provenance': [{'wikipedia_id': '2575978', 'title': 'Cities of Refuge', 'start_paragraph_id': 1, 'start_character': 26, 'end_paragraph_id': 1, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]