Question: who played uncle in only fools and horses
[{'answer': 'Buster Merryfield', 'provenance': [{'wikipedia_id': '950923', 'title': 'Uncle Albert', 'start_paragraph_id': 1, 'start_character': 285, 'end_paragraph_id': 1, 'end_character': 302, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '950923', 'title': 'Uncle Albert', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 302, 'bleu_score': 0.864500624984836, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3292859417570551266}, 'section': 'Section::::Abstract.'}]}]