REMOVE

1. neighborhoods
2. buildings (structures)
3. automobiles
4. sidewalks

WHAT

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

More 

WHERE

1. New Windsor, Maryland (2)

WHO

1. Campbell, Sandra L. Still (1)
2. Clyfford Still; Still, Cl … (1)
3. Sandra L. Still Campbell; … (1)
4. Still, Clyfford (1)

Less

WHEN

1. 1966 (1)
2. 1969 (1)
3. after 1966 (1)