22003
Continuing our previous work , we take the first steps of structure - activity relationship exploration and show that 1 , 3 , 4 - oxadiazol - 2 - ones can serve as scaffold for both selective FAAH and MAGL inhibitors , and also function as a dual FAAH / MAGL inhibitor at sub - micromolar IC50 values .
 Chemical: 1 , 3 , 4 - oxadiazol - 2 - ones
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: 1 , 3 , 4 - oxadiazol - 2 - ones