Input: Identify the most salient words:

doctors discussing while walking in the hospital

Output: doctor
hospital
walk

Input: Identify the most salient words:

black clouds and blue sky indicating that a storm is coming

Output: indicate
sky
storm

Input: Identify the most salient words:

A twin bed with a white knitted cover.

Output: bed
cover
knit

Input: Identify the most salient words:

politician makes a controversial speech against immigration during political party

Output:
immigration
politician
speech