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: The molecule is a organic electroluminescent element and is electroluminescent. Please represent the molecule in SMILES.
user
c1ccc(-c2cc(-c3cc(-c4cccc5c4sc4ccccc45)cc(-c4cccc5c4sc4ccccc45)c3)cc(-c3ccc(-c4ccc5sc6cc(-c7ccc8c(c7)sc7ccc(-c9cc(-c%10ccc%11sc%12ccccc%12c%11c%10)cc(-c%10cc(-c%11cc(-c%12ccc%13sc%14ccccc%14c%13c%12)cc(-c%12ccc%13sc%14ccccc%14c%13c%12)c%11)cc(-c%11ccccc%11)n%10)c9)cc78)ccc6c5c4)cc3)n2)cc1
assistant