Question: who argued that imagery might be an epiphenomenon
[{'answer': 'Zenon Pylyshyn', 'provenance': [{'wikipedia_id': '59604', 'title': 'Epiphenomenon', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Examples.:Propositional theory.\n'}]}, {'provenance': [{'wikipedia_id': '59604', 'title': 'Epiphenomenon', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 878, 'bleu_score': 0.9661808264736941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11323456066709304307}, 'section': 'Section::::Examples.:Propositional theory.\n'}]}]