What are the keywords in the following sentence? woman herding her goats through the field
field, goat, herd

What are the keywords in the following sentence? sun burst on top in winter
burst, sun, winter

What are the keywords in the following sentence? a fountain reflects the lights around it .
fountain, light, reflect

What are the keywords in the following sentence? fans celebrate prior to the preliminary round match vs country
celebrate, country, fan, match