Question: where is the kidney located in the ventral cavity
[{'answer': 'Abdominal cavity', 'provenance': [{'wikipedia_id': '74941', 'title': 'Body cavity', 'start_paragraph_id': 3, 'start_character': 285, 'end_paragraph_id': 3, 'end_character': 301, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]