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:  The trans - activator protein Tax of human T - cell leukemia virus type I ( HTLV - I ) plays an important role in the development of adult T - cell leukemia through , at least in part , its ability to stimulate cell growth .

Output: trans - activator


Input: Consider Input:  NF - kappaB activation was also inhibited by CS .

Output: NF - kappaB


Input: Consider Input:  The in vitro effect of G - CSF and corticosteroids on granulopoiesis was evaluated in clonogenic assays of marrow mononuclear cells , by proliferation studies of the murine myeloid cell line 32D expressing the patient ' s mutated G - CSFR , and by measuring STAT5 activation in nuclear extracts from stimulated cells .


Output: G - CSF