23956
The effects of maslinic acid ( 1 ) , a pentacyclic triterpenoid obtained from Olea europaea , were studied in several tests for nociception in mice .
 Chemical: maslinic acid; Chemical: pentacyclic triterpenoid
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: maslinic acid; Chemical: pentacyclic triterpenoid