In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Input: Consider Input: Cembranoid and long-chain alkanol sites on the nicotinic acetylcholine receptor and their allosteric interaction.

Output: nicotinic acetylcholine receptor


Input: Consider Input: Inhibition by pentosan polysulfate (PPS) of heparin-binding growth factors released from tumor cells and blockage by PPS of tumor growth in animals.

Output: heparin-binding growth factors


Input: Consider Input: Pharmacogenomics of gemcitabine metabolism: functional analysis of genetic variants in cytidine deaminase and deoxycytidine kinase.


Output: cytidine deaminase