19603
The asymmetric synthesis of ( R ) - dihydro - beta - ionol , one of the most valuable raw materials for fragrance and flavor , was performed from inexpensive beta - ionone via lipase - catalyzed dynamic kinetic resolution followed by reduction .
 Chemical: ( R ) - dihydro - beta - ionol; Chemical: beta - ionone
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: ( R ) - dihydro - beta - ionol; Chemical: beta - ionone