17774
Metabolism of profenofos to 4 - bromo - 2 - chlorophenol , a specific and sensitive exposure biomarker .
 Chemical: profenofos; Chemical: 4 - bromo - 2 - chlorophenol
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: profenofos, 4 - bromo - 2 - chlorophenol 
Answer:
 Chemical: profenofos; Chemical: 4 - bromo - 2 - chlorophenol