Input: Identify the most salient words:

lower half of the legs of players on a pitch

Output: leg
pitch
player

Input: Identify the most salient words:

coal power plant with huge cooling towers and steam against the blue sky and white clouds

Output: cloud
cool
steam
tower

Input: Identify the most salient words:

cashew nuts grow on tropical trees which are native .

Output: cashew
grow
nut

Input: Identify the most salient words:

thick rainy clouds moves over the pedestrian bridge

Output:
bridge
cloud
move