[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of the class of styrenes that is 1,2-dimethylbenzene substituted by a vinyl group at position 4. It has a role as a plant metabolite and a volatile oil component."}, {"from": "gpt", "value": "[C][C][=C][Branch1][O][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C]"}]