Question: when did the first shrek movie come out
[{'answer': '2001', 'provenance': [{'wikipedia_id': '18717177', 'title': 'Shrek', 'start_paragraph_id': 1, 'start_character': 11, 'end_paragraph_id': 1, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]