Question: when did keeping up with the kardashians start
[{'answer': 'October 14 , 2007', 'provenance': [{'wikipedia_id': '13737778', 'title': 'Keeping Up with the Kardashians', 'start_paragraph_id': 38, 'start_character': 47, 'end_paragraph_id': 38, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Broadcast history.\n'}]}, {'provenance': [{'wikipedia_id': '13737778', 'title': 'Keeping Up with the Kardashians', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 1479, 'bleu_score': 0.9499414965044221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16180172568793291912}, 'section': 'Section::::Production.:Development.\n'}]}]