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: The transcriptional events that control T cell tolerance to peripheral self Ags are still unknown .
Example Output: peripheral self Ags

Example Input: We have previously reported that BMP - 2 inhibited the growth of HS - 72 mouse hybridoma cells by inducing p21 ( CIP1 / WAF1 ) expression .
Example Output: BMP - 2

Example Input: Similarly , A / R - induced E - selectin expression and neutrophil - endothelial cell adhesion were blocked by inhibition of PKC or PTK , while only PTK inhibited the redox - induced adhesion response .
Example Output:
E - selectin