Question: when did they start making fuel injected dirt bikes
[{'answer': '2009', 'provenance': [{'wikipedia_id': '50064051', 'title': 'Kawasaki KX450F', 'start_paragraph_id': 7, 'start_character': 29, 'end_paragraph_id': 7, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::First Generation 2005-2008.\n'}]}, {'provenance': [{'wikipedia_id': '50064051', 'title': 'Kawasaki KX450F', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 219, 'bleu_score': 0.871393365020642, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14655173774212051923}, 'section': 'Section::::Second Generation 2009-2011.\n'}]}]