955
However, the U937 monocytic cell line , which is fully permissive to HIV replication , is known to express only low levels of nuclear NF-kappa B .
 protein: NF-kappa B; cell line: U937 monocytic cell line; protein: nuclear NF-kappa B
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: NF-kappa B; cell line: U937 monocytic cell line; protein: nuclear NF-kappa B