REMOVE

1. windows
2. shadows
3. lamps (lighting devices)
4. beards

WHAT

1. Visual Works (hierarchy n … (1)
2. armchairs (1)
3. artists (visual artists) (1)
4. black-and-white film (1)

More 

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

1. 1969 (1)