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 the organic light-emitting device class of molecules.
user
c1ccc(-c2cc(-c3cccc(-c4cccc5c4-c4oc6ccccc6c4C54c5ccccc5-c5ccccc54)c3)cc(-c3cccc4ccccc34)n2)cc1
assistant