4166
Regulation of sialoadhesin expression on rat macrophages .
 cell type: rat macrophages; protein: sialoadhesin
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: rat macrophages, sialoadhesin 
Answer:
 cell type: rat macrophages; protein: sialoadhesin