REMOVE

1. plants
2. sky
3. clouds
4. hats
5. soil
6. farming

WHAT

1. blue (1)
2. grain elevators (1)
3. green (1)
4. landscapes (representatio … (1)
5. oil paint (1)
6. railroads (1)
7. red (1)
8. trains (vehicle groupings … (1)
9. Visual works (hierarchy n … (1)
10. yellow (1)

WHERE

1. Pullman, Washington (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1932 (1)