6878
Here we document that overexpression of Id3 , in progenitors that have initiated TCR gene rearrangements ( pre-T cells ), inhibits development into TCRalpha beta but not into TCRgamma delta T cells .
 cell line: TCRgamma delta T cells; DNA: TCR gene rearrangements; protein: Id3; cell type: pre-T cells; cell line: TCRalpha beta; cell type: progenitors; protein: TCR
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: TCRgamma delta T cells, TCR gene rearrangements, Id3, pre-T cells, TCRalpha beta, progenitors, TCR 
Answer:
 cell line: TCRgamma delta T cells; DNA: TCR gene rearrangements; protein: Id3; cell type: pre-T cells; cell line: TCRalpha beta; cell type: progenitors; protein: TCR