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Some cars were later modified ; car 5 for instance now has reversible plush seating , and car 6 did until recently retain its joint front windows but now has the central pillar removed from the driver 's window to increase visibility .
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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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