Question: what are the names of all the ninja turtles
[{'answer': 'Leonardo', 'provenance': [{'wikipedia_id': '43815', 'title': 'Teenage Mutant Ninja Turtles', 'start_paragraph_id': 88, 'start_character': 239, 'end_paragraph_id': 88, 'end_character': 247, 'bleu_score': 1.0, 'section': 'Section::::In other media.:Concert tour.\n'}]}, {'answer': 'Michelangelo', 'provenance': [{'wikipedia_id': '43815', 'title': 'Teenage Mutant Ninja Turtles', 'start_paragraph_id': 52, 'start_character': 600, 'end_paragraph_id': 52, 'end_character': 612, 'bleu_score': 1.0, 'section': 'Section::::Television series.:First animated series (1987–1996).\n'}]}, {'answer': 'Donatello', 'provenance': [{'wikipedia_id': '43815', 'title': 'Teenage Mutant Ninja Turtles', 'start_paragraph_id': 88, 'start_character': 217, 'end_paragraph_id': 88, 'end_character': 226, 'bleu_score': 1.0, 'section': 'Section::::In other media.:Concert tour.\n'}]}, {'answer': 'Raphael', 'provenance': [{'wikipedia_id': '43815', 'title': 'Teenage Mutant Ninja Turtles', 'start_paragraph_id': 88, 'start_character': 262, 'end_paragraph_id': 88, 'end_character': 269, 'bleu_score': 1.0, 'section': 'Section::::In other media.:Concert tour.\n'}]}]