Problem: What are the most important words?
wallpaper containing anime called and down the stairs u go .
Answer: anime, call, contain, wallpaper

Problem: What are the most important words?
class on a passenger train at station
Answer: class, station, train

Problem: What are the most important words?
Two chili dogs with onion and mustard with a side of tortilla chips.
Answer:
dog, onion, side