REMOVE

1. sidewalks
2. yards (areas)
3. windows
4. fences
5. trees
6. farms

WHAT

1. banks (landforms) (1)
2. barns (1)
3. birds (animals) (1)
4. black-and-white film (1)
5. buildings (structures) (1)
6. doors (1)
7. exterior views (1)
8. farmhouses (1)
9. farmyards (1)
10. fields (land) (1)
11. forests (plant communitie … (1)
12. landscapes (representatio … (1)
13. plants (1)
14. porches (1)
15. roads (1)
16. sky (1)
17. soil (1)
18. stairs (1)
19. utility poles (1)
20. Visual Works (hierarchy n … (1)

WHO

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

WHEN

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