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:  Binding of progestins to the glucocorticoid receptor .
Example Output: glucocorticoid receptor

Example Input:  In addition , the proliferative advantage of p12 ( I ) - transduced PBMCs was evident mainly at low concentrations of IL - 2 .
Example Output: IL - 2

Example Input:  All these findings suggest that uninfected PBMC can undergo activation of signal transduction and apoptosis after exposure to bystander HIV - infected cells , subsequent to the induction of cytokines such as IFNs and TNF - alpha .
Example Output:
TNF - alpha