811
RATIONALE : gamma - Vinyl GABA ( GVG ) irreversibly inhibits GABA - transaminase .
 Chemical: gamma - Vinyl GABA; Chemical: GVG; Chemical: GABA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: gamma - Vinyl GABA, GVG, GABA 
Answer:
 Chemical: gamma - Vinyl GABA; Chemical: GVG; Chemical: GABA