21664
After 30 min , all groups were treated with HCl / EtOH for gastric ulcer induction .
 Chemical: HCl; Chemical: EtOH
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: HCl; Chemical: EtOH