[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a cerium molecular entity and a metal oxide."}, {"from": "gpt", "value": "[O][=Ce][=O]"}]