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HB9 RNA transcripts were most prevalent in several human B cell lines and K562 cells .
 cell line: human B cell lines; RNA: HB9 RNA transcripts; DNA: HB9; cell line: K562 cells
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: human B cell lines, HB9 RNA transcripts, HB9, K562 cells 
Answer:
 cell line: human B cell lines; RNA: HB9 RNA transcripts; DNA: HB9; cell line: K562 cells