Question: who plays aj in blaze and the monster machines
[{'answer': 'Dusan Brown', 'provenance': [{'wikipedia_id': '40442993', 'title': 'Blaze and the Monster Machines', 'start_paragraph_id': 11, 'start_character': 26, 'end_paragraph_id': 11, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Characters.:Main.\n'}]}, {'answer': 'Caleel Harris', 'provenance': [{'wikipedia_id': '40442993', 'title': 'Blaze and the Monster Machines', 'start_paragraph_id': 11, 'start_character': 51, 'end_paragraph_id': 11, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Characters.:Main.\n'}]}, {'provenance': [{'wikipedia_id': '40442993', 'title': 'Blaze and the Monster Machines', 'start_paragraph_id': 11, 'start_character': 445, 'end_paragraph_id': 11, 'end_character': 840, 'bleu_score': 0.5013173257557421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5774008450808747171}, 'section': 'Section::::Characters.:Main.\n'}]}]