[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a brown solid. "}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][S][Sn][Branch1][Branch1][C][C][C][C][Branch1][Branch1][C][C][C][C][S][C][C][C][C][C][C][C][C][C][C][C][C]"}]