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Recently, we have reported that the histogenesis of HD of the general population may be assessed by monitoring the expression pattern of BCL-6 , a transcription factor expressed in germinal center (GC) B cells , and of CD138/syndecan-1 ( syn-1 ), a proteoglycan associated with post-GC, terminal B-cell differentiation .
 protein: BCL-6; protein: syn-1; cell type: B-cell; protein: CD138/syndecan-1; cell line: germinal center (GC) B cells; protein: transcription factor
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: BCL-6, syn-1, B-cell, CD138/syndecan-1, germinal center (GC) B cells, transcription factor 
Answer:
 protein: BCL-6; protein: syn-1; cell type: B-cell; protein: CD138/syndecan-1; cell line: germinal center (GC) B cells; protein: transcription factor