[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a cyclopropane substituted at positions 1 and 2 by methylene and acetyl groups respectively. It is a member of cyclopropanes, a methyl ketone and an olefinic compound."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][C][C][Ring1][Ring1][=C]"}]