REMOVE

1. black-and-white film
2. fields (land)
3. roads
4. hats
5. 1960
6. 1970

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. automobiles (1)
4. branches (plant component … (1)

More 

WHEN

1. between 1960 - 1970 (1)