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The company hit some snags in 2003 when a number of their smaller two-stroke engine d mopeds fell afoul of tighter EU emission regulations and the Kreidler brand name actually disappeared from some markets for a while .
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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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