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.

Example Input:  Therefore , upon in vivo androgen treatment , other cells containing androgen receptors than thymocytes are probably involved in inducing the increase in thymic apoptosis .
Example Output: androgen receptors

Example Input:  Here we demonstrate that the unique region of Gads contains a capase cleavage site .
Example Output: capase cleavage site

Example Input:  Here we show that site C binds members of the ubiquitously expressed RFX family of proteins , notably RFX1 , RFX3 , and the associated factor MIBP1 , whereas sites B and D both bind the B - cell - specific activator protein BSAP / Pax5 .
Example Output:
site C