Input: Identify the most salient words:

large bolt and tighten the nut by hand

Output: bolt
hand
tighten

Input: Identify the most salient words:

painted stools add a pop of color to classic black and white kitchen .

Output: add
color
kitchen
pop

Input: Identify the most salient words:

a spider catching a fly in its web

Output: catch
fly
spider
web

Input: Identify the most salient words:

Small single engine prop plane gliding over the water.

Output:
glide
plane
water