2000
Both LAM -and LPS -inducible IL-6 promoter activity was localized to a DNA fragment , positions -158 to -49 , by deletion analysis and chloramphenicol acetyltransferase assay .
 protein: chloramphenicol acetyltransferase; DNA: LPS -inducible IL-6 promoter; DNA: -158 to -49; DNA: DNA fragment; protein: LAM; protein: IL-6
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: chloramphenicol acetyltransferase, LPS -inducible IL-6 promoter, -158 to -49, DNA fragment, LAM, IL-6 
Answer:
 protein: chloramphenicol acetyltransferase; DNA: LPS -inducible IL-6 promoter; DNA: -158 to -49; DNA: DNA fragment; protein: LAM; protein: IL-6