Problem: What are the most important words?
an old woman feeds a flock of seagulls on a beach
Answer: beach, feed, seagull

Problem: What are the most important words?
a bunch of people stand around a brief case
Answer: bunch, case, stand

Problem: What are the most important words?
mother and calf striped dolphins amongst those slaughtered in the cove
Answer:
cove, dolphin, mother