17172
Saturated fatty acids ( FA ) were grafted using tyrosine as a spacer group to the cyclotriphosphazene ring along with equimolar hydrophilic methoxy poly ( ethylene glycol ) ( MPEG ) in cis - nongeminal way .
 Chemical: Saturated fatty acids; Chemical: tyrosine; Chemical: cyclotriphosphazene; Chemical: methoxy poly ( ethylene glycol ); Chemical: MPEG
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: Saturated fatty acids; Chemical: tyrosine; Chemical: cyclotriphosphazene; Chemical: methoxy poly ( ethylene glycol ); Chemical: MPEG