976
The IA4 mAb was identified among a series of antibodies raised in BALB / c mice after immunization against a HLA class I - deficient , lymphokine - activated killer ( LAK ) - susceptible EBV - B lymphocyte line .
 GENE: IA4 mAb; GENE: HLA
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: IA4 mAb, HLA 
Answer:
 GENE: IA4 mAb; GENE: HLA