9906
TCR alpha ( TCRA ) expression was examined in RNA samples from PBMC and isolated populations of CD4 + , CD8 + , and DN T cells from 15 healthy individuals .
 GENE: TCR alpha; GENE: TCRA; GENE: CD4 +; GENE: CD8 +
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: TCR alpha, TCRA, CD4 +, CD8 + 
Answer:
 GENE: TCR alpha; GENE: TCRA; GENE: CD4 +; GENE: CD8 +