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We present here the results on the recognition of several pml/RAR-alpha peptides by APL patients expressing HLA DR11 .
 protein: HLA DR11
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: HLA DR11 
Answer:
 protein: HLA DR11