Question: what type of family is formed by the marriage of two individuals and their offspring
[{'answer': 'traditional family structure', 'provenance': [{'wikipedia_id': '23597463', 'title': 'Family structure in the United States', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23597463', 'title': 'Family structure in the United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 537, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15295281770357685403}, 'section': 'Section::::Abstract.'}]}]