1129
Lymphocytes activated with the OKT3 antibody to the T-cell antigen receptor expressed fewer binding sites as compared to lymphocytes that were activated by the polyclonal activator phytohemagglutinin ( PHA ).
 protein: OKT3 antibody; protein: phytohemagglutinin; cell type: Lymphocytes; cell type: lymphocytes; protein: PHA; protein: T-cell antigen receptor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: OKT3 antibody; protein: phytohemagglutinin; cell type: Lymphocytes; cell type: lymphocytes; protein: PHA; protein: T-cell antigen receptor