[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a naphthyl ketone that is naphthalene substituted at position 2 by an acetyl group."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2]"}]