Input: Identify the most salient words:

the diagram compares the planets of the inner solar system to star

Output: diagram
planet
system

Input: Identify the most salient words:

pink cherry blossoms moving on a windy day with blue sky

Output: blossom
day
sky

Input: Identify the most salient words:

a flight battling the winds to land at airport this morning

Output: airport
flight
wind

Input: Identify the most salient words:

this sign warns visitors of the possibility of ticks in the area .

Output:
area
sign
visitor
warn