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 liquid crystal. Please represent the molecule in SMILES.
user
CC1CCC2CC(c3cc(F)c(-c4ccc(OC(F)F)cc4)c(F)c3)CCC2C1
assistant