Question: who played caesar in the planet of the apes movie
[{'answer': 'Andy Serkis', 'provenance': [{'wikipedia_id': '43718681', 'title': 'War for the Planet of the Apes', 'start_paragraph_id': 1, 'start_character': 318, 'end_paragraph_id': 1, 'end_character': 329, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]