REMOVE

1. brown
2. purple
3. railroads
4. figures
5. 1930

WHAT

1. Visual Works (hierarchy n … (1)
2. buildings (structures) (1)
3. clouds (1)
4. color film (film) (1)
5. farms (1)

More 

WHERE

1. Westminster, Maryland (1)

WHO

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

WHEN

1. 1971 (1)
2. 1971 August 1 (1)