REMOVE

1. farming (activity or system)
2. animals

WHAT

1. Ovis (genus) (1)
2. Visual Works (hierarchy n … (1)
3. exterior views (1)

WHO

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

WHEN

1. 1929 (1)
2. 1960 (1)
3. between 1929 - 1960 (1)