REMOVE

1. soil
2. machinery
3. fences
4. buildings (structures)
5. barriers
6. shadows

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. benches (furniture) (1)
4. branches (plant component … (1)

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WHERE

1. New York, New York (1)

WHEN

1. 1964 (1)
2. ca. 1964 (1)