14928
Abstract Context : Tri - layered floating tablets using only one grade of polyethylene oxide ( PEO ) would enable easy manufacturing , reproducibility and controlled release for highly soluble drugs .
 Chemical: polyethylene 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: polyethylene oxide; Chemical: PEO