17756
Contaminant profiles are discussed , including a higher chlorinated pattern of polychlorinated biphenyls possibly associated with a Superfund site in nearby Brunswick , Georgia , USA , and unusual polybrominated diphenylether patterns seen in this and previous sea turtle studies .
 Chemical: polychlorinated biphenyls; Chemical: polybrominated diphenylether
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: polychlorinated biphenyls, polybrominated diphenylether 
Answer:
 Chemical: polychlorinated biphenyls; Chemical: polybrominated diphenylether