2676
We have previously shown that a human B lymphoma cell line, B104 , expressed surface IgM ( sIgM ) and surface IgD ( sIgD ), and that crosslinking of sIgM and sIgD by anti- IgM antibody (Ab) and anti- IgD Ab , respectively, induced Ca2+ influx to almost the same degree, whereas only sIgM -crosslinking caused B104 cell death .
 protein: sIgM; protein: sIgM; protein: IgM; cell line: human B lymphoma cell line, B104; protein: IgD; protein: IgM; protein: surface IgM; protein: IgD; protein: surface IgD; protein: sIgD; protein: anti- IgM antibody (Ab); protein: anti- IgD Ab; protein: sIgM; protein: sIgD; cell line: B104 cell
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: sIgM, sIgM, IgM, human B lymphoma cell line, B104, IgD, IgM, surface IgM, IgD, surface IgD, sIgD, anti- IgM antibody (Ab), anti- IgD Ab, sIgM, sIgD, B104 cell 
Answer:
 protein: sIgM; protein: sIgM; protein: IgM; cell line: human B lymphoma cell line, B104; protein: IgD; protein: IgM; protein: surface IgM; protein: IgD; protein: surface IgD; protein: sIgD; protein: anti- IgM antibody (Ab); protein: anti- IgD Ab; protein: sIgM; protein: sIgD; cell line: B104 cell