21330
A novel method for preparing complete antigens of gonyautoxin 2 , 3 and their feature of immunogenicity .
 Chemical: gonyautoxin 2 , 3
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: gonyautoxin 2 , 3