REMOVE

1. fences
2. windows
3. sky
4. doors
5. 1966-1976

WHAT

1. Visual Works (hierarchy n … (1)
2. birds (animals) (1)
3. exterior views (1)
4. geese (animals) (1)
5. plants (1)

More 

WHO

1. Clyfford Still; Still, Cl … (1)
2. Garske, Patricia; Patrici … (1)
3. Still, Clyfford (1)
4. Still, Patricia Alice Gar … (1)

Less

WHEN

1. 1956 (1)
2. c. 1956 (1)