Problem: What are the most important words?
A hot dog with toppings, a cheeseburger and fries on a tray.
Answer: fry, topping, tray

Problem: What are the most important words?
many different things like toys and dolls are offered for sale at the weekly flea market aside
Answer: market, sale, thing

Problem: What are the most important words?
lights reflected from the ground
Answer:
ground, light, reflect