11663
In this paper, we demonstrate that the activation of NF-kappaB by LPS in a promonocytic cell line ( U937 ) followed a rather slow kinetics, depending on the rate of IkappaB-alpha inhibitor hydrolysis .
 cell line: U937; protein: NF-kappaB; protein: IkappaB-alpha; cell line: promonocytic cell line
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: U937, NF-kappaB, IkappaB-alpha, promonocytic cell line 
Answer:
 cell line: U937; protein: NF-kappaB; protein: IkappaB-alpha; cell line: promonocytic cell line