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:  B lymphocyte stimulator ( BLyS ) is a novel member of the TNF family of proteins expressed by myeloid cells as membrane - bound and soluble forms .
Example Output: B lymphocyte stimulator

Example Input:  RESULTS : Consistent with the known features of nasal polyps , CD4 + ( T helper / inducer ) , CD8 + ( cytotoxic / suppressor ) , CD68 + ( macrophages ) , mast cells , eosinophils and neutrophils were all clearly detected by their relevant monoclonal antibodies or appropriate histochemical staining , but only mast cells tested positive for ER / PR labelling with their polyclonal and monoclonal antibodies .
Example Output: monoclonal antibodies

Example Input:  HIV - 1 infection is accompanied by qualitative and quantitative defects in CD4 + T lymphocytes .
Example Output:
HIV - 1