Input: Identify the most salient words:

A tower with a clock on top on a concrete lot.

Output: clock
lot
tower

Input: Identify the most salient words:

A zebra grazes under a large shade tree.

Output: graze
tree
zebra

Input: Identify the most salient words:

politician delivering her maiden speech on wednesday

Output: deliver
politician
speech
wednesday

Input: Identify the most salient words:

tourist attraction is a fortification built by traders for trade in timber and gold

Output:
attraction
build
fortification
gold
trader