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We have used Western blotting to investigate the presence of these proteins during the cell cycles of two different cellular systems : a continuously growing myeloid leukemic cell line , HL60 , and normal cells stimulated into cycle, phyto- hemagglutinin ( PHA )-stimulated normal human peripheral blood lymphocytes ( PBL ).
 cell line: phyto- hemagglutinin ( PHA )-stimulated normal human peripheral blood lymphocytes; cell type: normal cells; cell line: cellular systems; cell line: HL60; protein: PHA; cell type: PBL; cell line: continuously growing myeloid leukemic cell line
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: phyto- hemagglutinin ( PHA )-stimulated normal human peripheral blood lymphocytes, normal cells, cellular systems, HL60, PHA, PBL, continuously growing myeloid leukemic cell line 
Answer:
 cell line: phyto- hemagglutinin ( PHA )-stimulated normal human peripheral blood lymphocytes; cell type: normal cells; cell line: cellular systems; cell line: HL60; protein: PHA; cell type: PBL; cell line: continuously growing myeloid leukemic cell line