Question: what do you call someone who does graffiti
[{'answer': 'graffiti artist', 'provenance': [{'wikipedia_id': '11985', 'title': 'Graffiti', 'start_paragraph_id': 3, 'start_character': 353, 'end_paragraph_id': 3, 'end_character': 368, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11985', 'title': 'Graffiti', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 852, 'bleu_score': 0.9628321890584021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4317563157022731477}, 'section': 'Section::::Contemporary graffiti.:Spread of hip hop culture.\n'}]}]