Question: when was the original planet of the apes released
[{'answer': '1968', 'provenance': [{'wikipedia_id': '18618306', 'title': 'Planet of the Apes (1968 film)', 'start_paragraph_id': 0, 'start_character': 20, 'end_paragraph_id': 0, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18618306', 'title': 'Planet of the Apes (1968 film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 544, 'bleu_score': 0.978138775770484, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7289836719499408834}, 'section': 'Section::::Abstract.'}]}]