Question: who plays caesar in the planet of the ape movies
[{'answer': 'Andy Serkis', 'provenance': [{'wikipedia_id': '27279709', 'title': 'Rise of the Planet of the Apes', 'start_paragraph_id': 1, 'start_character': 193, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27279709', 'title': 'Rise of the Planet of the Apes', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 217, 'bleu_score': 0.787716354549663, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17431639217722359234}, 'section': 'Section::::Cast.:Apes.\n'}]}]