REMOVE

1. silver gelatin
2. farmers
3. farms

WHAT

1. black-and-white film (1)
2. buildings (structures) (1)
3. campuses (1)
4. colleges (buildings) (1)
5. doors (1)
6. exterior views (1)
7. hills (1)
8. plants (1)
9. sidewalks (1)
10. sky (1)
11. streets (1)
12. studios (work spaces) (1)
13. towers (building division … (1)
14. trees (1)
15. utility poles (1)
16. Visual Works (hierarchy n … (1)
17. windows (1)

Less

WHERE

1. San Francisco, California (1)

WHO

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

WHEN

1. 1946 (1)
2. 1950 (1)
3. between 1946 - 1950 (1)