6697
Transcriptional control of the IL-5 gene by human helper T cells : IL-5 synthesis is regulated independently from IL-2 or IL-4 synthesis .
 protein: IL-5; protein: IL-2; protein: IL-5; protein: IL-4; cell type: human helper T cells
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: IL-5, IL-2, IL-5, IL-4, human helper T cells 
Answer:
 protein: IL-5; protein: IL-2; protein: IL-5; protein: IL-4; cell type: human helper T cells