REMOVE

1. rubbish
2. sidewalks
3. driveways
4. hats
5. buildings (structures)
6. automobiles
7. utility poles

WHAT

1. audiences (1)
2. black-and-white film (1)
3. commencements (1)
4. exterior views (1)
5. hills (1)
6. lamps (lighting devices) (1)
7. men (male humans) (1)
8. photographers (1)
9. plants (1)
10. robes (main garments) (1)
11. signs (declatory or adver … (1)
12. sky (1)
13. soil (1)
14. students (1)
15. sunglasses (1)
16. trees (1)
17. Visual Works (hierarchy n … (1)
18. women (1)

WHEN

1. 1967 (1)