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Organochlorine pesticides ( OCPs ) such as dieldrin are a persistent class of aquatic pollutants that cause adverse neurological and reproductive effects in vertebrates .
 Organochlorine, dieldrin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Organochlorine, dieldrin