What are the keywords in the following sentence? a long train in coming down some tracks
come, track, train

What are the keywords in the following sentence? heavy rain falls amidst a lush green forest
fall, forest, rain

What are the keywords in the following sentence? A passenger train on it's way to the next station.
station, train, way

What are the keywords in the following sentence? A person balance a basket on their head on a beach.
balance, basket, beach, head