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:
 Constitutively activated Akt - 1 is vital for the survival of human monocyte - differentiated macrophages .

Ex Output:
Akt - 1


Ex Input:
 Tk mRNA is induced following treatment with estrogen .

Ex Output:
Tk mRNA


Ex Input:
 Binding of either factor to the octamer element occurred independently .

Ex Output:

octamer element