Problem: What are the most important words?
an employee of talks to stranded tourists waiting at the airport to be evacuated
Answer: airport, strand, talk, tourist, wait

Problem: What are the most important words?
heading up a snowy and icy ridge to the summit .
Answer: head, ridge, summit

Problem: What are the most important words?
In the beach a woman is balancing a basket of shells on her head.
Answer:
balance, basket, beach, head