Question: who played bert in mary poppins on broadway
[{'answer': 'Gavin Lee', 'provenance': [{'wikipedia_id': '3744292', 'title': 'Mary Poppins (musical)', 'start_paragraph_id': 11, 'start_character': 554, 'end_paragraph_id': 11, 'end_character': 563, 'bleu_score': 1.0, 'section': 'Section::::Productions.:Original West End production.\n'}]}, {'answer': 'Adam Fiorentino', 'provenance': [{'wikipedia_id': '3744292', 'title': 'Mary Poppins (musical)', 'start_paragraph_id': 15, 'start_character': 578, 'end_paragraph_id': 15, 'end_character': 593, 'bleu_score': 1.0, 'section': 'Section::::Productions.:Original Broadway production.\n'}]}, {'answer': 'Nicolas Dromard', 'provenance': [{'wikipedia_id': '3744292', 'title': 'Mary Poppins (musical)', 'start_paragraph_id': 15, 'start_character': 766, 'end_paragraph_id': 15, 'end_character': 781, 'bleu_score': 1.0, 'section': 'Section::::Productions.:Original Broadway production.\n'}]}, {'provenance': [{'wikipedia_id': '3744292', 'title': 'Mary Poppins (musical)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 1101, 'bleu_score': 0.9766921249696031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16861646632980687460}, 'section': 'Section::::Productions.:Original Broadway production.\n'}]}]