REMOVE

1. hills
2. bushes
3. rubbish
4. freight cars
5. automobiles
6. black-and-white film
7. plants

WHAT

1. Visual Works (hierarchy n … (1)
2. branches (plant component … (1)

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WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1966 (1)
2. after 1966 (1)