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.

Ex Input:
 A regulatory element of the empty spiracles homeobox gene is composed of three distinct conserved regions that bind regulatory proteins .

Ex Output:
empty spiracles


Ex Input:
 In those patients who before transplantation were serological negative for CMV but had received organs from CMV - IgG positive donors , the incidence of the disease was highest .

Ex Output:
CMV - IgG


Ex Input:
 Most significantly , the cyclin E - Cdk2 complex is maximally active at the G1 / S transition , and overexpression of cyclin E decreases the time it takes the cell to complete G1 and enter S phase .

Ex Output:

cyclin E