9218
Here we identify the cell cycle regulator E2F as an IL-2 target in T lymphocytes and PI3K as the critical signaling pathway .
 protein: PI3K; protein: E2F; protein: cell cycle regulator; cell type: lymphocytes; protein: IL-2
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: PI3K, E2F, cell cycle regulator, lymphocytes, IL-2 
Answer:
 protein: PI3K; protein: E2F; protein: cell cycle regulator; cell type: lymphocytes; protein: IL-2