REMOVE

1. trees
2. rubbish
3. bushes
4. farms

WHAT

1. Visual works (hierarchy n … (2)
2. abstraction (2)
3. brown (2)
4. oil paint (2)
5. purple (2)

More 

WHERE

1. New York, New York (1)
2. Westminster, Maryland (1)

WHO

1. Still, Clyfford (2)

WHEN

1. 1954 (1)
2. 1979 (1)