Input: Identify the most salient words:

museum and other institutions will offer free admission to students .

Output: admission
museum
offer

Input: Identify the most salient words:

northern lights overhead in the sky in the shape of a heart .

Output: heart
light
sky

Input: Identify the most salient words:

a herd of cows eat hay during a winter

Output: cow
eat
hay
winter

Input: Identify the most salient words:

herd grazing the pasture in autumn .

Output:
autumn
graze
herd
pasture