Question: who plays mason in dog with a blog
[{'answer': 'Griffin Kunitz', 'provenance': [{'wikipedia_id': '36190455', 'title': 'Dog with a Blog', 'start_paragraph_id': 18, 'start_character': 19, 'end_paragraph_id': 18, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Characters.:Recurring.\n'}]}, {'provenance': [{'wikipedia_id': '36190455', 'title': 'Dog with a Blog', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 309, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14285668896004378696}, 'section': 'Section::::Characters.:Recurring.\n'}]}]