[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a simplest member of the class of isoflavones that is 4H-chromen-4-one in which the hydrogen at position 3 is replaced by a phenyl group."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][=O]"}]