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B lymphocytes and macrophages express closely related immunoglobulin G ( IgG ) Fc receptors ( Fc gamma RII ) that differ only in the structures of their cytoplasmic domains .
 protein: immunoglobulin G ( IgG ) Fc receptors; cell type: B lymphocytes; protein: IgG; protein: cytoplasmic domains; protein: immunoglobulin G; protein: Fc gamma RII
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: immunoglobulin G ( IgG ) Fc receptors; cell type: B lymphocytes; protein: IgG; protein: cytoplasmic domains; protein: immunoglobulin G; protein: Fc gamma RII