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:  In this model , CD8 alpha + Mac - 1 - DCs are supposed to be of lymphoid while CD8 alpha - Mac - 1 + DCs are supposed to be of myeloid origin .
Example Output: CD8 alpha

Example Input:  T cells recognizing antigens encoded within map units 0 . 67 to 0 . 73 of HSV DNA are frequently recovered from herpetic lesions .
Example Output: HSV DNA

Example Input:  The association of trans - acting T cell factors ( TCFs ) or lymphoid enhancer factor 1 ( LEF - 1 ) with their coactivator beta - catenin mediates transient transcriptional responses to extracellular Wnt signals .
Example Output:
LEF - 1