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.

Ex Input:
 The characteristics of these two factors are consistent with their involvement in GM - CSF induction .

Ex Output:
GM - CSF


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

Ex Output:
NF - kappaB


Ex Input:
 This proliferative defect is not reversed by addition of exogenous IL - 2 and is p53 - independent .

Ex Output:

IL - 2