REMOVE

1. hats
2. windows
3. women
4. farms
5. bushes

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. fences (1)
4. fields (land) (1)

More 

WHO

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

WHEN

1. 1920 (1)
2. 1940 (1)
3. between 1920 - 1940 (1)