16138
Two new triterpenoids , 3 beta - ( 2 - methoxy - oxalyloxy ) - 24 - methylene - lanost - 8 - en - 21 - oic acid ( 1 ) and 3 beta - ( 2 - methoxy - oxalyloxy ) - 15 alpha - hydroxy - 24 - methylene - lanost - 8 - en - 21 - oic acid ( 2 ) , were isolated from cultures of the fungus Perenniporia maackiae , together with two previously known triterpenoids ( 3 and 4 ) .
 Chemical: triterpenoids; Chemical: 3 beta - ( 2 - methoxy - oxalyloxy ) - 24 - methylene - lanost - 8 - en - 21 - oic acid; Chemical: 3 beta - ( 2 - methoxy - oxalyloxy ) - 15 alpha - hydroxy - 24 - methylene - lanost - 8 - en - 21 - oic acid; Chemical: triterpenoids
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: triterpenoids; Chemical: 3 beta - ( 2 - methoxy - oxalyloxy ) - 24 - methylene - lanost - 8 - en - 21 - oic acid; Chemical: 3 beta - ( 2 - methoxy - oxalyloxy ) - 15 alpha - hydroxy - 24 - methylene - lanost - 8 - en - 21 - oic acid; Chemical: triterpenoids