3899
The 75-kD protein is recognized by antibodies to SLP-76 , which has recently been isolated from T cells and sequenced.
 protein: 75-kD protein; protein: SLP-76; cell type: T 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: 75-kD protein, SLP-76, T cells 
Answer:
 protein: 75-kD protein; protein: SLP-76; cell type: T cells