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:  OBJECTIVE : Tumor necrosis factor - alpha ( TNF - alpha ) induces a variety of cellular responses , some of them being at least seemingly contradictory .
Example Output: TNF - alpha

Example Input:  Cortisol was able to minimize the enhancement of NK cytotoxicity obtainable in the presence of immune interferon ( IFN - gamma ) .
Example Output: IFN - gamma

Example Input:  Chromatin immunoprecipitation assays supported the involvement of both Sp1 and Sp3 in complexes formed on the MAT2B promoter .
Example Output:
MAT2B promoter