20372
Rats were randomly divided into control group , model group , enalapril group , high stachydrine group , medium stachydrine group , and low stachydrine group .
 Chemical: enalapril; Chemical: stachydrine; Chemical: stachydrine; Chemical: stachydrine
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: enalapril; Chemical: stachydrine; Chemical: stachydrine; Chemical: stachydrine