3097
Fusion of mouse CD8 + class I MHC - restricted T cells with the BW5147 thymoma invariably yields CD8 - hybridomas in which RNA transcribed from the CD8 alpha ( Lyt - 2 ) gene is undetectable .
 GENE: mouse CD8 +; GENE: class I MHC; GENE: CD8 -; GENE: CD8 alpha; GENE: Lyt - 2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: mouse CD8 +; GENE: class I MHC; GENE: CD8 -; GENE: CD8 alpha; GENE: Lyt - 2