9843
Cooperation of Spi-1/ PU.1 with an activated erythropoietin receptor inhibits apoptosis and Epo -dependent differentiation in primary erythroblasts and induces their Kit ligand-dependent proliferation .
 protein: Epo; cell type: primary erythroblasts; protein: PU.1; protein: Spi-1/ PU.1; protein: activated erythropoietin receptor
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: Epo, primary erythroblasts, PU.1, Spi-1/ PU.1, activated erythropoietin receptor 
Answer:
 protein: Epo; cell type: primary erythroblasts; protein: PU.1; protein: Spi-1/ PU.1; protein: activated erythropoietin receptor