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:
Overview of monoclonal antibodies and small molecules targeting the epidermal growth factor receptor pathway in colorectal cancer.

Ex Output:
epidermal growth factor receptor


Ex Input:
Hexahydrochromeno[4,3-b]pyrrole derivatives as acetylcholinesterase inhibitors.

Ex Output:
acetylcholinesterase


Ex Input:
Maqui berry (Aristotelia chilensis) and the constituent delphinidin glycoside inhibit photoreceptor cell death induced by visible light.

Ex Output:

photoreceptor