9797
The core of the delayed release tablets consisted of hydroxypropyl methylcellulose ( HPMC ) and caffeine .
 Chemical: hydroxypropyl; Chemical: caffeine
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: hydroxypropyl; Chemical: caffeine