1562
Potassium permanganate ( KMnO ( 4 ) ) is used to control iron concentrations and to reduce the levels of nuisance materials that affect odor or taste of finished drinking water .
 Chemical: Potassium permanganate; Chemical: KMnO ( 4 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Potassium permanganate; Chemical: KMnO ( 4 )