4218
Activation of the JAK /STAT pathway has been implicated in IL-7R signaling .
 protein: /STAT; protein: IL-7R; protein: JAK
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, IL-7R, JAK 
Answer:
 protein: /STAT; protein: IL-7R; protein: JAK