REMOVE

1. sky
2. ladders
3. rock
4. soil
5. bushes

WHAT

1. chickens (animals) (2)
2. cows (animals) (1)
3. farming (2)
4. farms (2)
5. fences (2)
6. graphite pencils (1)
7. horses (animals) (1)
8. ink (2)
9. landscapes (representatio … (1)
10. oil pastels (1)
11. Visual Works (hierarchy n … (1)
12. Visual works (hierarchy n … (1)

Less

WHO

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

WHEN

1. 1923 (2)
2. 1931 (1)
3. circa 1923 to 31 (1)