Input: Identify the most salient words:

wall on old ruins of a medieval building

Output: building
ruin
wall

Input: Identify the most salient words:

and into the forest i go to lose my mind and find my soul .

Output: find
forest
soul

Input: Identify the most salient words:

hd time lapse of a sunset with moving clouds over a forest

Output: cloud
forest
lapse
move

Input: Identify the most salient words:

an irate teacher shouting at a boy in a classroom

Output:
classroom
shout
teacher