Whats the difference between economy and premium economy?

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Tags

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2. #include
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4. #international
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7. #amenities
8. #recline
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10. #additional
11. #width
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16. #standard
17. #economy
18. #flights
19. #which
20. #compared
21. #premium
22. #headrests
23. #legroom
24. #legrests