23772
Additional experiments involving the incubation of liver microsomes with individual monohydroxy - tetrabrominated metabolites in place of BDE - 47 demonstrated that 2 , 4 - dibromophenol was a product of BDE - 47 and several primary metabolites , but the dihydroxy - tetrabrominated metabolite was not formed by sequential hydroxylation of any of the monohydroxy - tetrabrominated metabolites tested .
 Chemical: monohydroxy; Chemical: BDE - 47; Chemical: 2 , 4 - dibromophenol; Chemical: BDE - 47; Chemical: dihydroxy; 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: monohydroxy; Chemical: BDE - 47; Chemical: 2 , 4 - dibromophenol; Chemical: BDE - 47; Chemical: dihydroxy; Chemical: monohydroxy