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:
 fNF - E2 mRNA was found to be more abundant in erythroid cells than megakaryocytic cells at day 7 of culture .

Ex Output:
fNF - E2


Ex Input:
 Our findings rather suggest a TCF - 1 - dependent , cell autonomous effect on the acquisition of multiple Ly - 49 receptors .

Ex Output:
TCF - 1


Ex Input:
 The basic helix - loop - helix ( bHLH ) proteins E12 and E47 and an inhibitor HLH protein , Id3 , play key roles in thymocyte differentiation .

Ex Output:

inhibitor HLH protein