Question: who was andy's girlfriend on the andy griffith show
[{'answer': 'Ellie Walker'}, {'answer': 'Peggy McMillan'}, {'answer': 'Helen Crump', 'provenance': [{'wikipedia_id': '1817777', 'title': 'List of The Andy Griffith Show characters', 'start_paragraph_id': 3, 'start_character': 691, 'end_paragraph_id': 3, 'end_character': 702, 'bleu_score': 1.0, 'section': 'Section::::Main.\n'}]}]