Question: when was the this is it tour supposed to start
[{'answer': 'July 2009'}, {'provenance': [{'wikipedia_id': '21828440', 'title': 'This Is It (concert residency)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 583, 'bleu_score': 0.5859382009043751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9858245743063649064}, 'section': 'Section::::Abstract.'}]}]