Input: Identify the most salient words:

symbiosis a relationship in which different organisms live in close association with each other

Output: live
organism
relationship

Input: Identify the most salient words:

racism demonstrated by football fans has been a recurrent problem in football .

Output: demonstrate
fan
football

Input: Identify the most salient words:

redundant cruise ships moored near industrial buildings reflecting in the golden water in early morning

Output: morning
ship
water

Input: Identify the most salient words:

a close up of butterflies feeding on oranges and bananas

Output:
butterfly
feed
orange