[{"from": "human", "value": "What can you tell me about this molecule? [O].[O].[O].[O].[O].[O].[O].[O].[O].[Na+1].[Na+1].[S-2]"}, {"from": "gpt", "value": "The molecule is a hydrate with formula Na2S.9H2O. It contains a sodium sulfide (anhydrous)."}]