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:  The Tip protein of Herpesvirus saimiri strain 484C binds to and activates the Lck tyrosine protein kinase .
Example Output: Tip protein

Example Input:  The mechanism of reducing NO production resulting from inhaled NO may involve , in part , the activities of reactive oxygen species and / or nuclear factor - kappaB .
Example Output: nuclear factor

Example Input:  This activity is further augmented by cotransfected Smad4 .
Example Output:
cotransfected Smad4