7132
Hexylsubstituted poly ( lactic acid ) ( hexPLA ) is a viscous polymer , which degrades in the presence of water similar to the structure related poly ( lactic acid ) .
 Chemical: Hexylsubstituted poly ( lactic acid ); Chemical: hexPLA; Chemical: poly ( lactic acid )
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: Hexylsubstituted poly ( lactic acid ); Chemical: hexPLA; Chemical: poly ( lactic acid )