Input: Identify the most salient words:

growing and plowing patterns in the fields

Output: field
grow
pattern

Input: Identify the most salient words:

rugby players chatting together at the pitch

Output: chat
pitch
player

Input: Identify the most salient words:

tower bridge being raised in the evening to allow a boat to pass underneath

Output: boat
bridge
evening
pass

Input: Identify the most salient words:

full bag of gifts from film character flies on a parachute .

Output:
character
fly
gift
parachute