1364
With anti-CD2 alone, neonatal T cells proliferated slightly but produced no detectable IL-2 , whereas adult T cells proliferated vigorously, with significant IL-2 production .
 protein: anti-CD2; protein: IL-2; cell type: T cells; cell type: neonatal T cells; protein: IL-2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: anti-CD2; protein: IL-2; cell type: T cells; cell type: neonatal T cells; protein: IL-2