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https://commons.wikimedia.org/wiki/File:Southwest_737-700_N777QC.jpg
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Photographer: 
PlanespotterA320
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https://commons.wikimedia.org/w/index.php?title=User:PlanespotterA320&action=edit&redlink=1
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Creative Commons Attribution-Share Alike 4.0 International license.
Attribution Type URL: 
https://creativecommons.org/licenses/by-sa/4.0/deed.en