Question: how long has the show blue bloods been on tv
[{'answer': 'September 24 , 2010', 'provenance': [{'wikipedia_id': '27383608', 'title': 'Blue Bloods (TV series)', 'start_paragraph_id': 1, 'start_character': 531, 'end_paragraph_id': 1, 'end_character': 550, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27383608', 'title': 'Blue Bloods (TV series)', 'start_paragraph_id': 1, 'start_character': 269, 'end_paragraph_id': 1, 'end_character': 946, 'bleu_score': 0.6124306404145651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3808852989049118865}, 'section': 'Section::::Abstract.'}]}]