1110
Calcium acetate ( Ca ( CH ( 3 ) COO ) ( 2 ) ) and phosphoric acid ( H ( 3 ) PO ( 4 ) ) were used as starting materials for synthesizing nano - HA powders .
 Chemical: Calcium acetate; Chemical: Ca ( CH ( 3 ) COO ) ( 2 ); Chemical: phosphoric acid; Chemical: H ( 3 ) PO ( 4 )
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 acetate, Ca ( CH ( 3 ) COO ) ( 2 ), phosphoric acid, H ( 3 ) PO ( 4 ) 
Answer:
 Chemical: Calcium acetate; Chemical: Ca ( CH ( 3 ) COO ) ( 2 ); Chemical: phosphoric acid; Chemical: H ( 3 ) PO ( 4 )