REMOVE

1. students
2. photographers
3. buildings (structures)
4. exterior views

WHAT

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

WHEN

1. 1967 (1)