2286
Crosslinked linear polyethylenimine enhances delivery of DNA to the cytoplasm .
 Chemical: polyethylenimine
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: polyethylenimine 
Answer:
 Chemical: polyethylenimine