REMOVE

1. soil
2. trees
3. sidewalks
4. barns
5. birds (animals)

WHAT

1. deaths (1)
2. drawing (image-making) (1)
3. geometric patterns (1)
4. graphite pencils (1)
5. hats (1)
6. ink (1)
7. lines (geometric concept) (1)
8. religion (discipline) (1)
9. sketches (1)
10. teaching (1)
11. Visual Works (hierarchy n … (1)

Less

WHO

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

WHEN

1. 1933 (1)
2. 1933-1941 (1)
3. 1941 (1)