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English Noun adjuncts were traditionally mostly singular ( e.g. " trouser press " ) except when there were lexical restrictions ( e.g. " arms race " ) , but there is a recent trend towards more use of plural ones , especially in UK English .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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