20558
Antinociceptive effect and gastroprotective mechanisms of 3 , 5 - diprenyl - 4 - hydroxyacetophenone from Ageratina pichinchensis .
 Chemical: 3 , 5 - diprenyl - 4 - hydroxyacetophenone
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: 3 , 5 - diprenyl - 4 - hydroxyacetophenone