22528
A simple , sensitive , efficient , and novel method analyzing the number of spherulitic nuclei was proposed to estimate the solubility of a model drug acetaminophen ( APAP ) in poly ( ethylene oxide ) ( PEO ) .
 Chemical: acetaminophen; Chemical: APAP; Chemical: poly ( ethylene oxide ); Chemical: PEO
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: poly ( ethylene oxide ); Chemical: PEO