REMOVE

1. farms
2. houses
3. trees
4. sky
5. windows
6. landscapes (representations)
7. barns

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. beards (1)
4. black-and-white film (1)
5. coats (garments) (1)

More 

WHEN

1. 1960 (1)
2. 1975 (1)
3. between 1960 - 1975 (1)