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:
Metformin and phenformin activate AMP-activated protein kinase in the heart by increasing cytosolic AMP concentration.

Ex Output:
AMP-activated protein kinase


Ex Input:
Mercury induces the expression of cyclooxygenase-2 and inducible nitric oxide synthase.

Ex Output:
cyclooxygenase-2


Ex Input:
Histamine enhances the depolarizing afterpotential of immunohistochemically identified vasopressin neurons in the rat supraoptic nucleus via H1-receptor activation.

Ex Output:

H1-receptor