REMOVE

1. oil paint
2. blue
3. black
4. 1950

WHAT

1. Visual works (hierarchy n … (4)
2. abstraction (4)

WHERE

1. San Francisco, California (2)
2. New York, New York (1)

WHO

1. Still, Clyfford (4)

WHEN

1. 1955 (2)
2. Abstract Expressionist (2)
3. circa 1950–55 (2)