REMOVE

1. blue
2. black
3. abstraction
4. 1950

WHAT

1. Visual works (hierarchy n … (4)
2. oil paint (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)