[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an oxide of uranium.  Uranium oxides are used to colour glass and ceramics. 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, L250)"}, {"from": "gpt", "value": "[O].[O].[U]"}]