Input: Identify the most salient words:

An orange and white train traveling past a forest filled with lots of green trees.

Output: lot
train
travel

Input: Identify the most salient words:

troops arrive at their barracks to reinforce fellow troops following the siege by militants

Output: arrive
barrack
follow
militant
siege

Input: Identify the most salient words:

i have visited country a bit earlier this year while travelling in region .

Output: country
region
visit

Input: Identify the most salient words:

a tourists feeding the pigeons on the lawns

Output:
feed
pigeon
tourist