23769
Kinetic analysis of the rates of metabolite formation revealed that the major metabolites were 5 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether ( 5 - OH - BDE - 47 ) , 6 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether ( 6 - OH - BDE - 47 ) , and possibly the unidentified monohydroxy - tetrabrominated metabolite .
 Chemical: 5 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether; Chemical: 5 - OH - BDE - 47; Chemical: 6 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether; Chemical: 6 - OH - BDE - 47; Chemical: monohydroxy
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: 5 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether; Chemical: 5 - OH - BDE - 47; Chemical: 6 - hydroxy - 2 , 2 ' , 4 , 4 ' - tetrabromodiphenyl ether; Chemical: 6 - OH - BDE - 47; Chemical: monohydroxy