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:
 Vibrio cholerae iron transport : haem transport genes are linked to one of two sets of tonB , exbB , exbD genes .

Ex Output:
exbD genes


Ex Input:
 Adhesion was inhibited by mAbs against the COOH - terminus and central cell binding domains of fibronectin , as well as by the corresponding CS1 and RGD peptides .

Ex Output:
RGD peptides


Ex Input:
 Using transgenic lines a detailed analysis of the Hoxa - 7 enhancer - directed expression during embryogenesis was performed .

Ex Output:

Hoxa - 7