Input: Identify the most salient words:

the sister of the bride giving a toast

Output: bride
give
sister
toast

Input: Identify the most salient words:

earth with city lights at night in outer space

Output: earth
light
night
space

Input: Identify the most salient words:

a big elephant walking on the savannah.

Output: elephant
savannah
walk

Input: Identify the most salient words:

groups were gathered to protest the removal of this statue of military commander .

Output:
commander
gather
statue