9304
Universal concept for the implementation of a single cleavable unit at tunable position in functional poly ( ethylene glycol ) s .
 Chemical: poly ( ethylene glycol ) s
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: poly ( ethylene glycol ) s 
Answer:
 Chemical: poly ( ethylene glycol ) s