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Principal EI - MS fragmentation pathways of sulfuric acid 2 ' , 5 ' - dichlorobiphenyl - 4yl ester 2 , 2 , 2 - trichloroethyl ester 5 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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