Question: who played mary ann on gilligan's island
[{'answer': 'Dawn Elberta Wells', 'provenance': [{'wikipedia_id': '748630', 'title': 'Dawn Wells', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '748630', 'title': 'Dawn Wells', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 254, 'bleu_score': 0.8174282571018041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8114470517475012171}, 'section': 'Section::::Abstract.'}]}]