19600
Both enantiomers of dihydro - beta - ionol and beta - ionol , contained in the aromatic components of Osmanthus flower and of Hakuto peach , were obtained with high optical purity by lipase - catalyzed kinetic resolution of the racemates .
 Chemical: dihydro - beta - ionol; Chemical: beta - ionol
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: dihydro - beta - ionol; Chemical: beta - ionol