20560
The structure was established as 3 , 7 - dioxo - 11 beta - hydroxy - 5 alpha - tirucalla - 8 , 24 ( Z ) - dien - 26 - oic acid by various spectroscopic techniques including MS , 1D , and 2D NMR and HRTOFMS .
 Chemical: 3 , 7 - dioxo - 11 beta - hydroxy - 5 alpha - tirucalla - 8 , 24 ( Z ) - dien - 26 - oic acid
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: 3 , 7 - dioxo - 11 beta - hydroxy - 5 alpha - tirucalla - 8 , 24 ( Z ) - dien - 26 - oic acid 
Answer:
 Chemical: 3 , 7 - dioxo - 11 beta - hydroxy - 5 alpha - tirucalla - 8 , 24 ( Z ) - dien - 26 - oic acid