Problem: What are the most important words?
A clock standing next to a window that you can see a Christmas tree.
Answer: clock, tree, window

Problem: What are the most important words?
Someone is quietly headed down the mountains as he skis or glides very slowly.
Answer: head, mountain, ski

Problem: What are the most important words?
silhouettes of travelers hurrying through an airport
Answer:
airport, hurry, traveler