What are the keywords in the following sentence? A crowd protests the government in a foreign country
crowd, government, protest

What are the keywords in the following sentence? A train on a long track with cargo during the day.
cargo, day, track, train

What are the keywords in the following sentence? drone shot tracking down over a massive neighborhood and city in the summertime .
city, neighborhood, shot

What are the keywords in the following sentence? A pizza covered in sauce and lots of toppings.
cover, lot, pizza