17436
Three pharmaceutical compounds , acetaminophen , indomethacin , and tri - O - methyl - beta - cyclodextrin were used as model compounds .
 Chemical: acetaminophen; Chemical: indomethacin; Chemical: tri - O - methyl - beta - cyclodextrin
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: indomethacin; Chemical: tri - O - methyl - beta - cyclodextrin