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:
 In this study , we investigated a possible link between Ii - dependent B cell maturation and the NF - kappaB pathway .

Ex Output:
NF - kappaB


Ex Input:
 Lymphocyte commitment and differentiation are accompanied by programmed gene expression or repression events which are driven by lineage and stage specific transcription factors .

Ex Output:
transcription factors


Ex Input:
 This study established a UUO model in angiotensin type 1a receptor ( AT1a ) deficient ( mutant ) mice to elucidate the role of angiotensin II through AT1a on the fibrosis of the obstructed kidney ( OBK ) .

Ex Output:

angiotensin II