Question: who played galen in planet of the apes
[{'answer': '( Wright King', 'provenance': [{'wikipedia_id': '18618306', 'title': 'Planet of the Apes (1968 film)', 'start_paragraph_id': 8, 'start_character': 929, 'end_paragraph_id': 8, 'end_character': 942, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]