3743
Interleukin-6 promotes multiple myeloma cell growth via phosphorylation of retinoblastoma protein .
 protein: Interleukin-6; protein: retinoblastoma protein
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: Interleukin-6, retinoblastoma protein 
Answer:
 protein: Interleukin-6; protein: retinoblastoma protein