Input: Identify the most salient words:

plums on a branch against the sky

Output: branch
plum
sky

Input: Identify the most salient words:

cat sleeping in a garden

Output: cat
garden
sleep

Input: Identify the most salient words:

time lapse of fast moving clouds over a foreground of trees

Output: cloud
foreground
lapse
move
tree

Input: Identify the most salient words:

A white plate topped with a sliced up banana, peanut butter and cookies.

Output:
banana
cookie
plate
slice