Problem: What are the most important words?
flock of seagulls sitting on a pier at the sea
Answer: flock, pier, sea, seagull, sit

Problem: What are the most important words?
this cat has seen some strange things in his lives .
Answer: cat, life, thing

Problem: What are the most important words?
organization leader meets fans outside the stadium prior to first match against republic .
Answer:
fan, leader, match, meet