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The antitumor pentacyclic triterpenoids , Lantadene A ( 1 ) and B ( 2 ) were isolated from the leaves of weed Lantana camara L .
 Chemical: Lantadene A ( 1 ) and B
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: Lantadene A ( 1 ) and B