REMOVE

1. roads
2. workers
3. rock
4. 1967

WHAT

1. athletes (2)
2. automobiles (1)
3. barriers (2)
4. black-and-white film (2)
5. buildings (structures) (2)
6. exterior views (2)
7. fences (2)
8. horses (animals) (2)
9. men (male humans) (2)
10. paths (2)
11. plants (2)
12. polo (field sport) (2)
13. polo clubs (built complex … (2)
14. polo fields (2)
15. signs (declatory or adver … (2)
16. sky (2)
17. spectators (event observe … (1)
18. sports uniforms (2)
19. stables (animal housing) (1)
20. trees (2)
21. Visual Works (hierarchy n … (2)
22. woods (plant communities) (2)

Less

WHERE

1. Aiken, South Carolina (2)

WHO

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

WHEN

1. 1966 (2)