You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to both the organic light-emitting and organic light-emitting diode classes of molecules.
user
c1ccc(-c2cc(-c3ccccc3-n3c4ccccc4c4ccc(-c5nc6ccccc6s5)cc43)nc(-c3ccccc3)n2)cc1
assistant