Input: Identify the most salient words:

A boy skateboarding in front of a pharmacy.

Output: front
pharmacy
skateboard

Input: Identify the most salient words:

building function on the right is listed site

Output: function
list
site

Input: Identify the most salient words:

automobile model sits next to a tent in a campsite

Output: campsite
sit
tent

Input: Identify the most salient words:

a cub plays with his mother as they rest

Output:
cub
mother
rest