Input: Identify the most salient words:

frame of the branches of blossoming apple and blue sky

Output: apple
branch
sky

Input: Identify the most salient words:

the endangered elephant is the only living species of biological genus

Output: elephant
endanger
genus
live
specie

Input: Identify the most salient words:

football player applauds the fans after being replaced by football player during a friendly soccer match

Output: match
player
replace

Input: Identify the most salient words:

water rushing over and around boulders creates a vortex like pattern

Output:
create
rush
water