Question: which type of family is also known as a traditional family blended nuclear single-parent foster
[{'answer': 'nuclear', 'provenance': [{'wikipedia_id': '193132', 'title': 'Nuclear family', 'start_paragraph_id': 1, 'start_character': 2, 'end_paragraph_id': 1, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '193132', 'title': 'Nuclear family', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 1554, 'bleu_score': 0.974803508433243, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3491531140892480747}, 'section': 'Section::::North American conservatism.\n'}]}]