Question: who is frank supposed to be in donnie darko
[{'answer': "Elizabeth 's boyfriend", 'provenance': [{'wikipedia_id': '57820', 'title': 'Donnie Darko', 'start_paragraph_id': 9, 'start_character': 794, 'end_paragraph_id': 9, 'end_character': 816, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '57820', 'title': 'Donnie Darko', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 940, 'bleu_score': 0.621120542048199, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15214672909589008794}, 'section': 'Section::::Plot.\n'}]}]