REMOVE

1. trees
2. hills
3. platforms (general)
4. Yaddo
5. sky

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. authors (1)
4. black-and-white film (1)

More 

WHERE

1. Yaddo, Saratoga Springs, … (1)

WHEN

1. 1934 (1)
2. 1935 (1)
3. ca. 1934-35 (1)