26831
In glioblastoma spheroids , higher concentrations of celastrol and Hsp70 siRNA in chitosan - TPP nanocarriers were necessary to induce cell death .
 Chemical: celastrol; Chemical: TPP
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: celastrol, TPP 
Answer:
 Chemical: celastrol; Chemical: TPP