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 a light-emitting device. Please write the SMILES representation of it.
user
c1ccc(-c2cc(-c3cccc4c3sc3ccccc34)ccc2Nc2ccc(-c3cccc4ccccc34)cc2)cc1
assistant