REMOVE

1. rock
2. sky
3. plants
4. railroads

WHAT

1. Visual Works (hierarchy n … (1)
2. bushes (1)
3. clouds (1)
4. color film (film) (1)
5. fields (land) (1)

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WHERE

1. Westminster, Maryland (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1964 (1)
2. circa 1964 July (1)