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:
 Recent studies have increasingly implicated the proteasome in the regulation of cell surface receptors .

Ex Output:
cell surface receptors


Ex Input:
 Glucocorticoid receptor and in vitro sensitivity to steroid hormones in human lymphoproliferative diseases and myeloid leukemia .

Ex Output:
Glucocorticoid receptor


Ex Input:
 Supershift assays showed no effect of the anti - Sp1 antibody on complex formation , whereas the anti - Sp3 antibody had a strong effect on protein . DNA complex formation , suggesting that Sp3 is one of the main factors binding to this Sp1 site .

Ex Output:

Sp1 site