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https://en.wikipedia.org/wiki/Amsterdam
https://en.wikipedia.org/wiki/Amsterdam_Metro#Map
https://en.wikipedia.org/wiki/Amsterdam_Metro#Rolling_stock
https://en.wikipedia.org/wiki/Amsterdam_Metro#M5
Cars per unit: 6Length: 116.2 m (381 ft 2+3⁄4 in)
https://en.wikipedia.org/wiki/Amsterdam_Metro#Summary
https://en.wikipedia.org/wiki/Zuidas