Input: Identify the most salient words:

sting appears at the curtain call following his debut performance in adventure tv program

Output: appear
call
follow
performance
program

Input: Identify the most salient words:

footballer in action during a training session ahead of round of match against country .

Output: action
country
session

Input: Identify the most salient words:

consecutive lines that form a single unit in a poem

Output: form
line
poem
unit

Input: Identify the most salient words:

tourist attraction is a fortification built by traders for trade in timber and gold

Output:
build
fortification
gold
trade
trader