[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a chemical compound of sodium and uranium. Uranium is a chemical element that has the symbol U and atomic number 92. It is a normal part of rocks, soil, air, and water, and occurs in nature in the form of minerals. (L248, L249)"}, {"from": "gpt", "value": "[O-2].[O-2].[O-2].[O-2].[Na+1].[Na+1].[U]"}]