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 light-emitting and high luminous efficiency classes of molecules.
user
c1ccc(-c2cc3ccc4nc(-n5c6ccc(-c7cccc8c7c7ccccc7n8-c7nc(-c8ccccc8)c8ccccc8n7)cc6c6c7ccccc7ccc65)nc(-c5ccccc5)c4c3s2)cc1
assistant