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 vaccine was highly immunogenic , since 111 of 113 patients ( 98 % ) produced anti - HBs ( 10 mIU / ml or more ) .
Example Output: anti - HBs

Example Input:  With this study , a total of 13 operators for the glp regulon have been characterized .
Example Output: glp regulon

Example Input:  In this study , we sought to determine the specific effect of HIV protease inhibitors on patient weight .
Example Output:
HIV protease