6090
The secondary , but not the primary , antibody responses of male C57Bl / 6 mice were higher among mice housed alone compared to mice housed in groups ; differences were observed for both IgM and IgG anti - KLH antibodies .
 GENE: IgM; GENE: IgG anti - KLH antibodies
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: IgM, IgG anti - KLH antibodies 
Answer:
 GENE: IgM; GENE: IgG anti - KLH antibodies