What are the keywords in the following sentence? touring car on the island in the state of country
country, island, state

What are the keywords in the following sentence? A brick structure with a clock on top
clock, structure, top

What are the keywords in the following sentence? old town and sea on the island
island, sea, town

What are the keywords in the following sentence? people have travelled the world and raised a family in their car
car, travel, world