Question: who played paul drake on perry mason show
[{'answer': 'William DeWolf Hopper Jr .', 'provenance': [{'wikipedia_id': '1229437', 'title': 'William Hopper', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1229437', 'title': 'William Hopper', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 569, 'bleu_score': 0.87049607842117, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11585254338941278825}, 'section': 'Section::::Abstract.'}]}]