You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is fluorescent. Please write the SMILES representation of it.
user
O=C(O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C(=O)c1ccc2c(c1)Cc1ccccc1-2
assistant