Input: Identify the most salient words:

a painting of clouds in the northern sky with field and trees

Output: field
painting
tree

Input: Identify the most salient words:

natural pools are a swimming pool and pond combined that require no chemicals and very little maintenance .

Output: maintenance
pond
pool

Input: Identify the most salient words:

flock of white swans feeding on a blue lake

Output: feed
flock
swan

Input: Identify the most salient words:

a fairy is a mythical creature of folklore and mystery dressed the colors of summer

Output:
color
creature
dress
fairy
summer