Question: who played mrs howell on gilligan's island
[{'answer': 'Natalie Schafer', 'provenance': [{'wikipedia_id': '492494', 'title': 'Natalie Schafer', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '492494', 'title': 'Natalie Schafer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 174, 'bleu_score': 0.780324276606238, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3935223002227550582}, 'section': 'Section::::Abstract.'}]}]