What are the keywords in the following sentence? farmers threshing out rice from a harvested rice field
field, harvest, rice, thresh

What are the keywords in the following sentence? A cat going through a window missing some glass panes.
cat, pane, window

What are the keywords in the following sentence? she collects shells at the sea early in the morning
collect, sea, shell

What are the keywords in the following sentence? oil painting snowy trees in the winter forest
forest, painting, tree