Question: who did martin bayfield play in harry potter films
[{'answer': 'a young Rubeus Hagrid', 'provenance': [{'wikipedia_id': '18933449', 'title': 'Martin Bayfield', 'start_paragraph_id': 6, 'start_character': 273, 'end_paragraph_id': 6, 'end_character': 294, 'bleu_score': 1.0, 'section': 'Section::::Film and television career.\n'}]}, {'provenance': [{'wikipedia_id': '18933449', 'title': 'Martin Bayfield', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 565, 'bleu_score': 0.979896933041101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6650466917276336120}, 'section': 'Section::::Film and television career.\n'}]}]