Input: Identify the most salient words:

americanus cub lying on its side sleeping in a clearing in the forest

Output: cub
forest
sleep

Input: Identify the most salient words:

the horse of a brown color eats the dried up grass on a glade

Output: color
dry
glade
grass
horse

Input: Identify the most salient words:

a ferry travelling towards an island with dark cloudy skies ahead

Output: ferry
island
travel

Input: Identify the most salient words:

Three boats constructed of wood sitting on dry land.

Output:
boat
land
sit
wood