REMOVE

1. boys
2. silver gelatin
3. hills

WHAT

1. automobiles (1)
2. exterior views (1)
3. farmers (1)
4. fields (land) (1)
5. group portraits (1)
6. landscapes (representatio … (1)
7. men (male humans) (1)
8. platforms (general) (1)
9. sky (1)
10. trees (1)
11. Visual Works (hierarchy n … (1)

WHERE

1. Alberta, Canada (1)

WHO

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

WHEN

1. 1920 (1)
2. 1945 (1)
3. between circa 1929 and ci … (1)