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:  Further , inhibition of Mcl - 1 by antisense oligonucleotides , also resulted in macrophage apoptosis .
Example Output: Mcl - 1

Example Input:  T cells retained their physical parameters as measured by forward and side light scatter , and functional activity as measured by costimulation of proliferation and IL - 2 production after being scraped off this substrate .
Example Output: IL - 2

Example Input:  However , IL - 2 production reached only suboptimal levels in the presence of CD86 but optimal levels with CD80 .
Example Output:
IL - 2