Question: who does the voice of wallace in wallace and gromit
[{'answer': 'Peter John Sallis', 'provenance': [{'wikipedia_id': '951922', 'title': 'Peter Sallis', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '951922', 'title': 'Peter Sallis', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 372, 'bleu_score': 0.8589458143212211, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16521760136641390290}, 'section': 'Section::::Abstract.'}]}]