Question: where does the salt of the sea come from
[{'answer': 'from the evaporation of seawater', 'provenance': [{'wikipedia_id': '231065', 'title': 'Sea salt', 'start_paragraph_id': 1, 'start_character': 34, 'end_paragraph_id': 1, 'end_character': 64, 'bleu_score': 0.668740304976422, 'section': 'Section::::Abstract.'}]}]