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Since compounds 9 and 10 have two chlorine substituents in the phenyl ring with the - OSO3TCE group , the low relative abundance of fragment ion [ ArOSO3H ] + suggests that the sulfate group of both compounds is less stable , possibly because of the comparatively high pKa value of the Ar - OH group [ 20 ] .
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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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