Input: Identify the most salient words:

a girl lays down in the snow and makes a snow angel

Output: angel
lay
snow

Input: Identify the most salient words:

high definition time lapse of a beautiful sky with big dark clouds over the mountains shot in the evening

Output: evening
mountain
sky

Input: Identify the most salient words:

blue fog over a road into the autumnal forest

Output: fog
forest
road

Input: Identify the most salient words:

the tunnel leading to the start of the trail .

Output:
lead
trail
tunnel