[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a mineral with formula of NaCa2Si3O8(OH). The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Pct."}, {"from": "gpt", "value": "[H+1].[O-1][Si][=Branch1][C][=O][O-1].[O-1][Si][=Branch1][C][=O][O-1].[O-1][Si][=Branch1][C][=O][O-1].[Na+1].[Ca+2].[Ca+2]"}]