444
Conversely, calcium-independent anti-CD28 Ab and PMA-induced IL-2 production was resistant.
 protein: calcium-independent anti-CD28 Ab; 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: calcium-independent anti-CD28 Ab, IL-2 
Answer:
 protein: calcium-independent anti-CD28 Ab; protein: IL-2