61300
Via Diels-Alder reactions , it is a precursor to some commercial fragrances , including lyral , norbornene-2 - carboxaldehyde , and myrac aldehyde .
 person: Diels-Alder
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Diels-Alder 
Answer:
 person: Diels-Alder