13734
We found very little detectable activation of AP-1 , as assessed in a gel shift assay , in alveolar macrophages , whereas monocytes showed a substantial activation of AP-1 by PMA .
 cell type: alveolar macrophages; cell type: monocytes; protein: AP-1; protein: AP-1
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: alveolar macrophages, monocytes, AP-1, AP-1 
Answer:
 cell type: alveolar macrophages; cell type: monocytes; protein: AP-1; protein: AP-1