REMOVE

1. fences
2. trees
3. trucks
4. houses
5. doors
6. faces

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. buildings (structures) (1)
4. coats (garments) (1)
5. color film (film) (1)

More 

WHERE

1. Washington, District of C … (1)

WHO

1. Garske, Patricia; Patrici … (1)
2. Still, Patricia (1)

WHEN

1. 1968 (1)