REMOVE

1. railroads
2. rivers
3. black-and-white film
4. buildings (structures)
5. Spokane, Washington

WHAT

1. Visual Works (hierarchy n … (1)
2. banks (landforms) (1)
3. bridges (built works) (1)

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WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1925 (1)
2. ca. 1925 (1)