12541
One of the most popular models to evaluate the hepatoprotective potential of natural products is acetaminophen ( APAP ) - induced liver injury , although other hepatotoxicity models such as carbon tetrachloride , thioacetamide , ethanol and endotoxin are occasionally used .
 Chemical: acetaminophen; Chemical: APAP; Chemical: carbon tetrachloride; Chemical: thioacetamide; Chemical: ethanol
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: acetaminophen; Chemical: APAP; Chemical: carbon tetrachloride; Chemical: thioacetamide; Chemical: ethanol