Question: when did motown the musical open on broadway
[{'answer': 'April 2013', 'provenance': [{'wikipedia_id': '38564340', 'title': 'Motown: The Musical', 'start_paragraph_id': 1, 'start_character': 71, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '38564340', 'title': 'Motown: The Musical', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 554, 'bleu_score': 0.978375183951072, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3054907786364030103}, 'section': 'Section::::Abstract.'}]}]