Question: whats at the bottom of the dead sea
[{'answer': 'salt', 'provenance': [{'wikipedia_id': '8530', 'title': 'Dead Sea', 'start_paragraph_id': 1, 'start_character': 40, 'end_paragraph_id': 1, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8530', 'title': 'Dead Sea', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 581, 'bleu_score': 0.733281227408158, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17448024012322880265}, 'section': 'Section::::Chemistry.\n'}]}]