4661
In this report we describe the isolation of a Fab fragment ( Fab A8 ) showing a high relative affinity for the receptor ( 0 . 5 nM ) .
 GENE: Fab fragment; GENE: Fab A8
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: Fab fragment, Fab A8 
Answer:
 GENE: Fab fragment; GENE: Fab A8