What are the keywords in the following sentence? A very large herd of sheep grazing in a large field close to a town.
field, sheep, town

What are the keywords in the following sentence? the biggest pyramid in the world with a church on top is
church, pyramid, top

What are the keywords in the following sentence? football players form a wall during the match
form, player, wall

What are the keywords in the following sentence? stained glass window depicting builder and children in the cathedral of a city
city, depict, stain, window