21751
Chemical examination of a South China Sea soft coral Lobophytum sp . led to the isolation of three new alpha - methylene - gamma - lactone - containing cembranoids , ( 1R * , 3R * , 4R * , 14R * , 7E , 11E ) - 3 , 4 - epoxycembra - 7 , 11 , 15 ( 17 ) - trien - 16 , 14 - olide ( 1 ) , ( 1R * , 7S * , 14S * , 3E , 11E ) - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide ( 2 ) , and ( 1R * , 7S * , 14S * , 3E , 11E ) - 18 - acetoxy - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide ( 3 ) , along with eleven known analogues 4 - 14 .
 Chemical: alpha - methylene - gamma - lactone; Chemical: cembranoids; Chemical: ( 1R * , 3R * , 4R * , 14R * , 7E , 11E ) - 3 , 4 - epoxycembra - 7 , 11 , 15 ( 17 ) - trien - 16 , 14 - olide; Chemical: ( 1R * , 7S * , 14S * , 3E , 11E ) - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide; Chemical: ( 1R * , 7S * , 14S * , 3E , 11E ) - 18 - acetoxy - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide
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: alpha - methylene - gamma - lactone; Chemical: cembranoids; Chemical: ( 1R * , 3R * , 4R * , 14R * , 7E , 11E ) - 3 , 4 - epoxycembra - 7 , 11 , 15 ( 17 ) - trien - 16 , 14 - olide; Chemical: ( 1R * , 7S * , 14S * , 3E , 11E ) - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide; Chemical: ( 1R * , 7S * , 14S * , 3E , 11E ) - 18 - acetoxy - 7 - hydroperoxycembra - 3 , 8 ( 19 ) , 11 , 15 ( 17 ) - tetraen - 16 , 14 - olide