Problem: What are the most important words?
Several people are working behind the counter of a bakery.
Answer: bakery, counter, work

Problem: What are the most important words?
horse tethered under the trees before driving tourists to the scenic surroundings
Answer: drive, horse, surrounding, tether, tree

Problem: What are the most important words?
Three workers are performing their jobs while on scaffolding.
Answer:
job, scaffolding, worker