5088
Specifically, 9-cis-RA potently inhibited the growth of BFU-E response to erythropoietin ( Epo ) (100%), stem cell factor ( SCF ) + Epo (92%), IL-3 + Epo (97%), IL-4 + Epo (88%), and IL-9 + Epo (100%).
 protein: Epo; protein: IL-9; protein: Epo; protein: IL-3; protein: erythropoietin; protein: SCF; protein: Epo; protein: Epo; protein: Epo; protein: IL-4; protein: stem cell factor
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, IL-9, Epo, IL-3, erythropoietin, SCF, Epo, Epo, Epo, IL-4, stem cell factor 
Answer:
 protein: Epo; protein: IL-9; protein: Epo; protein: IL-3; protein: erythropoietin; protein: SCF; protein: Epo; protein: Epo; protein: Epo; protein: IL-4; protein: stem cell factor