What are the keywords in the following sentence? the sun is low on the horizon in the winter producing long shadows from short herbaceous stems .
shadow, sun, winter

What are the keywords in the following sentence? post image for breads of the world
image, post, world

What are the keywords in the following sentence? A lone passenger watches as the train pulls away from the station
pull, station, train, watch

What are the keywords in the following sentence? group of friends dancing with fireworks on a sandy beach at sunrise
beach, dance, friend, sunrise