Question: what are the houses in san francisco called
[{'answer': 'painted ladies', 'provenance': [{'wikipedia_id': '1009121', 'title': 'Painted ladies', 'start_paragraph_id': 1, 'start_character': 26, 'end_paragraph_id': 1, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1009121', 'title': 'Painted ladies', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 519, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8595824323180559073}, 'section': 'Section::::Abstract.'}]}]