1730
The effects of oleuropein , a phenolic compound in extra virgin olive oil , on protein metabolism were investigated by measuring testicular testosterone and plasma corticosterone levels in rats fed diets with different protein levels .
 Chemical: oleuropein; Chemical: phenolic; Chemical: testosterone; Chemical: corticosterone
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: oleuropein, phenolic, testosterone, corticosterone 
Answer:
 Chemical: oleuropein; Chemical: phenolic; Chemical: testosterone; Chemical: corticosterone