REMOVE

1. swings
2. power lines
3. yards (open spaces)

WHAT

1. Visual works (hierarchy n … (1)
2. abstraction (1)
3. black (1)
4. brown (1)
5. gray (1)

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WHERE

1. San Francisco, California (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1946 (1)