[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a thujene that is a bicyclic monoterpene isolated from the essential oils of various plant species. It has a role as a plant metabolite."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C][C][C][=Branch1][C][=C][C][Ring1][=Branch1][C][Ring1][#Branch1]"}]