14464
Design , synthesis , and structure - activity relationship studies of tryptanthrins as antitubercular agents .
 Chemical: tryptanthrins
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: tryptanthrins 
Answer:
 Chemical: tryptanthrins