Question: which tv personality was known as the voice of westminister
[{'answer': 'Roger A. Caras', 'provenance': [{'wikipedia_id': '921387', 'title': 'Westminster Kennel Club Dog Show', 'start_paragraph_id': 17, 'start_character': 16, 'end_paragraph_id': 17, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Announcers.:Show announcers.\n'}]}, {'provenance': [{'wikipedia_id': '921387', 'title': 'Westminster Kennel Club Dog Show', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 141, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8920275143645015894}, 'section': 'Section::::Announcers.:Show announcers.\n'}]}]