[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a monoterpene that is bicyclo[3.1.1]heptane substituted by methyl groups at positions 2, 6 and 6. It has a role as a plant metabolite. It is a terpenoid fundamental parent, a monoterpene and a carbobicyclic compound."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][Ring1][=Branch1][C][Ring1][Ring2][Branch1][C][C][C]"}]