Input: Identify the most salient words:

the amphibious assault ship approaches the pier .

Output: approach
pier
ship

Input: Identify the most salient words:

mist rises off the diverse rain forest

Output: forest
mist
rise

Input: Identify the most salient words:

traffic going under a bridge and fading out of focus

Output: bridge
focus
traffic

Input: Identify the most salient words:

museum opened in a purpose built building designed by architects

Output:
architect
build
building
design