Question: one of most common solvent used for crystallization is
[{'answer': 'Water', 'provenance': [{'wikipedia_id': '1249541', 'title': 'Water of crystallization', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 5, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1249541', 'title': 'Water of crystallization', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 557, 'bleu_score': 0.978138775770484, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4842826382917180653}, 'section': 'Section::::Other solvents of crystallization.\n'}]}]