Problem: What are the most important words?
A girl is rolling a snowball so she can make a snowman.
Answer: roll, snowball, snowman

Problem: What are the most important words?
image of the equestrian monument to military commander
Answer: commander, image, monument

Problem: What are the most important words?
a large patio is supported by a tightly fitted retaining wall .
Answer:
retain, support, wall