REMOVE

1. water
2. trees
3. 1920

WHAT

1. boats (1)
2. bridges (built works) (1)
3. exterior views (2)
4. graphite pencils (1)
5. lakes (bodies of water) (1)
6. landscapes (representatio … (3)
7. plants (1)
8. reflections (perceived pr … (2)
9. silver gelatin (2)
10. sky (2)
11. Visual works (hierarchy n … (1)

WHERE

1. Alberta, Canada (2)

WHO

1. Still, Clyfford (3)
2. Clyfford Still; Still, Cl … (2)

WHEN

1. 1945 (2)
2. between circa 1929 and ci … (2)
3. 1925 (1)
4. circa 1924 (1)