Question: who are the voices of transformers age of extinction
[{'answer': 'Peter Cullen', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 42, 'start_character': 0, 'end_paragraph_id': 42, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Frank Welker', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 27, 'start_character': 12, 'end_paragraph_id': 27, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'Robert Foxworth', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 30, 'start_character': 12, 'end_paragraph_id': 30, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'John DiMaggio', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 31, 'start_character': 12, 'end_paragraph_id': 31, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'Mark Ryan', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 32, 'start_character': 12, 'end_paragraph_id': 32, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'Reno Wilson', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 33, 'start_character': 12, 'end_paragraph_id': 33, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'John Goodman', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 28, 'start_character': 12, 'end_paragraph_id': 28, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}, {'answer': 'Ken Watanabe', 'provenance': [{'wikipedia_id': '32338015', 'title': 'Transformers: Age of Extinction', 'start_paragraph_id': 29, 'start_character': 12, 'end_paragraph_id': 29, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Voices.\n'}]}]