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In mice a 15-lipoxygenase is not expressed, but a leukocyte-type 12-lipoxygenase is present in peritoneal macrophages .
 cell type: peritoneal macrophages; protein: leukocyte-type 12-lipoxygenase; protein: 15-lipoxygenase
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: peritoneal macrophages, leukocyte-type 12-lipoxygenase, 15-lipoxygenase 
Answer:
 cell type: peritoneal macrophages; protein: leukocyte-type 12-lipoxygenase; protein: 15-lipoxygenase