What are the keywords in the following sentence? statue of military commander close to the forum and roman structure
commander, statue, structure

What are the keywords in the following sentence? A girl is rolling a snowball so she can make a snowman.
roll, snowball, snowman

What are the keywords in the following sentence? Delicious looking thick crust pizza with lots of tomato sauce
look, lot, pizza

What are the keywords in the following sentence? the train arriving on its way via australian suburb
arrive, train, way