29827
Highly Enantioselective Zirconium - Catalyzed Cyclization of Aminoalkenes .
 Chemical: Zirconium; Chemical: Aminoalkenes
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: Zirconium, Aminoalkenes 
Answer:
 Chemical: Zirconium; Chemical: Aminoalkenes