Question: what process is used to separate salt from sea water in australian desalination plants
[{'answer': 'reverse osmosis', 'provenance': [{'wikipedia_id': '26980505', 'title': 'Seawater desalination in Australia', 'start_paragraph_id': 1, 'start_character': 406, 'end_paragraph_id': 1, 'end_character': 421, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26980505', 'title': 'Seawater desalination in Australia', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 432, 'bleu_score': 0.806192402282152, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15817379751719568841}, 'section': 'Section::::Abstract.'}]}]