Question: how many chiefs signed the declaration of independence
[{'answer': '52', 'provenance': [{'wikipedia_id': '309191', 'title': 'Declaration of the Independence of New Zealand', 'start_paragraph_id': 3, 'start_character': 343, 'end_paragraph_id': 3, 'end_character': 345, 'bleu_score': 1.0, 'section': 'Section::::Background and signing.\n'}]}, {'provenance': [{'wikipedia_id': '309191', 'title': 'Declaration of the Independence of New Zealand', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 363, 'bleu_score': 0.9679895851501501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16997694879807987975}, 'section': 'Section::::Background and signing.\n'}]}]