Input: Identify the most salient words:

The boy is sitting on the carpeted staircase.

Output: carpet
sit
staircase

Input: Identify the most salient words:

a stray cat looks at its reflection in a swimming pool

Output: cat
look
pool

Input: Identify the most salient words:

an engagement ring with custom wedding band fitted to outer

Output: band
fit
ring

Input: Identify the most salient words:

portrait of girls studying in a rural classroom

Output:
classroom
portrait
study