Question: when did indiana jones and the kingdom of the crystal skull come out
[{'answer': 'May 22 , 2008', 'provenance': [{'wikipedia_id': '1252914', 'title': 'Indiana Jones and the Kingdom of the Crystal Skull', 'start_paragraph_id': 61, 'start_character': 35, 'end_paragraph_id': 61, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Reception.:Box office.\n'}]}, {'provenance': [{'wikipedia_id': '1252914', 'title': 'Indiana Jones and the Kingdom of the Crystal Skull', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 706, 'bleu_score': 0.7626547807336931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13838627039182130936}, 'section': 'Section::::Abstract.'}]}]