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https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Mark_Wilmer_Pumping_Plant_1.jpg/1024px-Mark_Wilmer_Pumping_Plant_1.jpg
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Photographer: 
Kjkolb
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https://commons.wikimedia.org/wiki/User:Kjkolb
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Creative Commons Attribution-Share Alike 3.0 Unported
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https://creativecommons.org/licenses/by-sa/3.0/legalcode