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.

Example Input:  Human alcohol dehydrogenase ( ADH ) exists as a heterogeneous group of isozymes capable of oxidizing a wide variety of aliphatic and aromatic alcohols .
Example Output: Human alcohol dehydrogenase

Example Input:  A . nidulans transformants secreted high amounts of PGI and PGII in comparison to the previously characterized A . niger transformants and a novel polygalacturonase ( PGC ) was produced at high levels by A . nidulans transformed with the subcloned pgaC gene .
Example Output: pgaC gene

Example Input:  The sequences of two previously known tail genes , R and S , of the temperate bacteriophage P2 and the sequence of an additional open reading frame ( orf - 30 ) located between S and V , were determined .
Example Output:
tail genes