REMOVE

1. children
2. trees
3. woods (plant communities)
4. rivers
5. artists (visual artists)

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. bushes (1)

More 

WHERE

1. Westlock, Alberta, Canada (1)

WHEN

1. 1946 (1)
2. after 1946 (1)