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: A 4 . 0 - kb Nlk message is also present during embryogenesis , detectable at day E10 .
Example Output: Nlk message

Example Input: We propose that U73 is involved in methylation of the G1739 residue of the human 28S rRNA .
Example Output: human 28S rRNA

Example Input: SH3A competes with the SH3 domains of Grb2 in binding to mSos1 , and the intersectin - mSos1 complex can be separated from Grb2 by sucrose gradient centrifugation .
Example Output:
SH3 domains