6553
Interestingly, when we fused HT-2 cells expressing the EPOR with Ba/F3 cells in a complementation assay , the resulting hybridomas proliferated and potently activated STAT-5 and MAPK in response to EPO .
 protein: STAT-5; protein: MAPK; cell line: Ba/F3 cells; protein: EPO; cell line: HT-2 cells; cell line: hybridomas; protein: EPOR
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: STAT-5, MAPK, Ba/F3 cells, EPO, HT-2 cells, hybridomas, EPOR 
Answer:
 protein: STAT-5; protein: MAPK; cell line: Ba/F3 cells; protein: EPO; cell line: HT-2 cells; cell line: hybridomas; protein: EPOR