Question: what is the first model year (4 digit) of the production run for the 2007 jeep jk model
[{'answer': '2007', 'provenance': [{'wikipedia_id': '3582447', 'title': 'List of Jeep vehicles', 'start_paragraph_id': 59, 'start_character': 27, 'end_paragraph_id': 59, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::KJ.\n'}]}]