2502
An exception is the Bcl - 6 gene , encoding a transcription factor , which was found to be mutated in normal human memory B cells .
 GENE: Bcl - 6 gene
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: Bcl - 6 gene