17290
The reaction used is based on the reduction of Fe ( III ) to Fe ( II ) by [ PA ] in the presence of NRS in a buffered medium ( Tris ; pH 8 . 0 ) with formation of Fe ( II ) / NRS complexes .
 Chemical: Fe ( III ); Chemical: Fe ( II ); Chemical: NRS; Chemical: Fe ( II ); Chemical: NRS
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: Fe ( III ), Fe ( II ), NRS, Fe ( II ), NRS 
Answer:
 Chemical: Fe ( III ); Chemical: Fe ( II ); Chemical: NRS; Chemical: Fe ( II ); Chemical: NRS