[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an indanone that consists of 2,3-dihydro-1H-indene substituted by an oxo group at position 1."}, {"from": "gpt", "value": "[C][C][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2]"}]