Question: how many members does a nuclear family have
[{'answer': 'two parents', 'provenance': [{'wikipedia_id': '193132', 'title': 'Nuclear family', 'start_paragraph_id': 1, 'start_character': 87, 'end_paragraph_id': 1, 'end_character': 98, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'their children ( one or more )'}, {'provenance': [{'wikipedia_id': '193132', 'title': 'Nuclear family', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 596, 'bleu_score': 0.9276281369144621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6801859157124230804}, 'section': 'Section::::Abstract.'}]}]