8777
Sponge - like porous Ni ( OH ) ( 2 ) - NiF ( 2 ) composite ( PNC ) film was successfully synthesized by the anodization of nickel in a NH ( 4 ) F and H ( 3 ) PO ( 4 ) containing electrolyte .
 Chemical: Ni ( OH ) ( 2 ); Chemical: NiF ( 2 ); Chemical: nickel; Chemical: NH ( 4 ) F; 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: Ni ( OH ) ( 2 ), NiF ( 2 ), nickel, NH ( 4 ) F, H ( 3 ) PO ( 4 ) 
Answer:
 Chemical: Ni ( OH ) ( 2 ); Chemical: NiF ( 2 ); Chemical: nickel; Chemical: NH ( 4 ) F; Chemical: H ( 3 ) PO ( 4 )