You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the high luminous efficiency, electroluminescent, and organic electroluminescent compound classes of molecules. Please represent the molecule in SMILES.
user
c1ccc(-c2ccc(-c3cc(-c4ccc(-c5cccc6c5sc5ccccc56)cc4)nc(-c4cccs4)n3)cc2)cc1
assistant