REMOVE

1. replicas
2. grayish blue
3. Abstract Expressionist

WHAT

1. Visual works (hierarchy n … (1)
2. abstraction (1)
3. black (color) (1)
4. canary yellow (color) (1)
5. crimson (color) (1)

More 

WHERE

1. New York, New York (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1956 (1)
2. 1956–59 (1)
3. 1959 (1)