26487
A study of the precursors of the natural antioxidant phenol 3 , 4 - dihydroxyphenylglycol in olive oil waste .
 Chemical: phenol 3 , 4 - dihydroxyphenylglycol
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: phenol 3 , 4 - dihydroxyphenylglycol 
Answer:
 Chemical: phenol 3 , 4 - dihydroxyphenylglycol