So William duPont built his depot from a standard Southern Railway floor plan that specified one entrance marked "White" and another marked "Colored."

VOA: standard.2010.03.04

Both Runway 27R and Taxiway M are 11, 890 feet long, Bergen said, but the runway is marked with white lights while the taxiway is marked with blue lights.

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Thankfully, some of Beijing's alleyway architecture is protected these days, with buildings marked by white stone plaques.

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Two coins are placed tails up and marked with a white cross.

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