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: Mutant B-RAF-Mcl-1 survival signaling depends on the STAT3 transcription factor.
Example Output: STAT3

Example Input: Glucagon-induced acetylation of Foxa2 regulates hepatic lipid metabolism.
Example Output: Foxa2

Example Input: A potent Chk1 inhibitor is selectively cytotoxic in melanomas with high levels of replicative stress.
Example Output:
Chk1