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 light-emitting. Please write the SMILES representation of it.
user
O=P(c1ccccc1)(c1cccc2ccccc12)c1ccc2c3c(cccc13)-c1c-2c(-c2ccccc2)c2ccccc2c1-c1ccccc1
assistant