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 organic light-emitting diode. Please write the SMILES representation of it.
user
c1ccc(-c2cc(-c3ccccc3)nc(-c3cc(-n4c5ccccc5c5cc6c7ccccc7n(-c7ccccc7)c6cc54)cc4c3sc3ccccc34)n2)cc1
assistant