Problem: What are the most important words?
The players play a long round of ping pong as they continue to maintain a great rally.
Answer: continue, pong, round

Problem: What are the most important words?
grape vines growing over pergola .
Answer: grow, pergola, vine

Problem: What are the most important words?
old stump in the summer forest covered with moss with large roots
Answer:
forest, moss, root