REMOVE

1. trains (vehicle groupings)
2. white
3. landscapes (representations)
4. 1930
5. 1929

WHAT

1. Visual works (hierarchy n … (1)
2. clouds (1)
3. grain elevators (1)
4. oil paint (1)

WHERE

1. Killam, Alberta, Canada (1)

WHO

1. Still, Clyfford (1)

WHEN

1. between 1929 and 1930 (1)