17814
All PGN dispersions prepared by the PGSS method resulted in the improvement of PGN dissolution rates compared to that prepared by the conventional methods and untreated PGN after 60 min ( p value < 0 . 05 ) .
 Chemical: PGN; Chemical: PGN; Chemical: PGN
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: PGN, PGN, PGN 
Answer:
 Chemical: PGN; Chemical: PGN; Chemical: PGN