REMOVE

1. clouds
2. barns
3. windows
4. concrete block

WHAT

1. benches (furniture) (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. bushes (1)
5. driveways (1)
6. exterior views (1)
7. farms (1)
8. fields (land) (1)
9. forests (plant communitie … (1)
10. garages (1)
11. lamps (lighting devices) (1)
12. landscapes (representatio … (1)
13. plants (1)
14. sky (1)
15. trees (1)
16. utility poles (1)
17. Visual Works (hierarchy n … (1)
18. wood products (1)
19. yards (areas) (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

1. 1961 (1)
2. after 1961 (1)