Input: Identify the most salient words:

white cat with different colored eyes hiding behind a wooden gate

Output: cat
eye
hide

Input: Identify the most salient words:

a painting of a building is part of series .

Output: building
part
series

Input: Identify the most salient words:

waves after politician departed following meetings .

Output: follow
meeting
politician

Input: Identify the most salient words:

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

Output:
heart
light
sky