Problem: What are the most important words?
pink arch over a narrow empty street in the village
Answer: arch, street, village

Problem: What are the most important words?
Passengers boarding a passenger jet on an airport tarmac.
Answer: jet, passenger, tarmac

Problem: What are the most important words?
aerial view of fields of wheat being harvested by a combine harvester
Answer:
field, harvest, harvester, wheat