Question: who do you think you are premiere date
[{'answer': 'March 5 , 2010', 'provenance': [{'wikipedia_id': '23730973', 'title': 'Who Do You Think You Are? (American TV series)', 'start_paragraph_id': 5, 'start_character': 289, 'end_paragraph_id': 5, 'end_character': 303, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}]