Input: Identify the most salient words:

a floating raft with a family

Output: family
float
raft

Input: Identify the most salient words:

fish for sale the market

Output: fish
market
sale

Input: Identify the most salient words:

video shows watering cabbage from a watering can close up

Output: cabbage
water
watering

Input: Identify the most salient words:

astronaut returned to space after his historic flight .

Output:
astronaut
flight
space