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Jeg-3 human choriocarcinoma-induced immunosuppression : downregulation of interleukin-2 , interleukin-2 receptor alpha-chain , and its Jak/Stat signaling pathway .
 protein: interleukin-2; protein: interleukin-2; protein: interleukin-2 receptor alpha-chain; protein: Jak/Stat
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-2, interleukin-2, interleukin-2 receptor alpha-chain, Jak/Stat 
Answer:
 protein: interleukin-2; protein: interleukin-2; protein: interleukin-2 receptor alpha-chain; protein: Jak/Stat