[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a polyketide."}, {"from": "gpt", "value": "[C][/C][=C][/C][=C][/C][=C][/C][C][C][C][C][C][/C][=C][/C][=C][/C][=C][C][=Branch1][=Branch2][=C][C][=Branch1][C][=O][O][Ring1][#Branch1][O]"}]