Question: how many acres is the san diego safari park
[{'answer': '1,800', 'provenance': [{'wikipedia_id': '36901', 'title': 'San Diego Zoo Safari Park', 'start_paragraph_id': 1, 'start_character': 97, 'end_paragraph_id': 1, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36901', 'title': 'San Diego Zoo Safari Park', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 792, 'bleu_score': 0.953711634841868, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6166367638124573846}, 'section': 'Section::::Abstract.'}]}]