21824
In this work , we utilize the interactions of an amorphous calcium carbonate phase with kaolinite to form a complex composite that can be organized into distinct hierarchical structures .
 Chemical: calcium carbonate; Chemical: kaolinite
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: calcium carbonate, kaolinite 
Answer:
 Chemical: calcium carbonate; Chemical: kaolinite