[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a member of the class of benzyl bromides that is toluene substituted on the alpha-carbon with bromine. It has a role as a lachrymator."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Br]"}]