Input: Identify the most salient words:

the leaning watchtower against a blue sky with broken cloud

Output: lean
sky
watchtower

Input: Identify the most salient words:

boats anchored in the sea next to a castle

Output: boat
castle
sea

Input: Identify the most salient words:

a city is a hectare urban park located .

Output: hectare
locate
park

Input: Identify the most salient words:

map showing locations mentioned in the text

Output:
location
map
text