Question: where in the oceans are siliceous oozes typically found
[{'answer': 'deep ocean floor', 'provenance': [{'wikipedia_id': '16391238', 'title': 'Siliceous ooze', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]