Question: who did steve douglas marry on my three sons
[{'answer': 'Barbara Harper', 'provenance': [{'wikipedia_id': '174002', 'title': 'My Three Sons', 'start_paragraph_id': 14, 'start_character': 91, 'end_paragraph_id': 14, 'end_character': 105, 'bleu_score': 1.0, 'section': 'Section::::History.:CBS years.\n'}]}, {'provenance': [{'wikipedia_id': '174002', 'title': 'My Three Sons', 'start_paragraph_id': 14, 'start_character': 450, 'end_paragraph_id': 14, 'end_character': 1098, 'bleu_score': 0.615890152888492, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16670961267492457288}, 'section': 'Section::::History.:CBS years.\n'}]}]