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 earthy, lemon rind, citrus, and woody. Please write the SMILES representation of it.
user
CCCCCCCCCC(=O)[O-].CCCCCCCCCC(=O)[O-].[Ca+2]
assistant