What are the keywords in the following sentence? church still stands in what is now the town of a city
church, city, stand

What are the keywords in the following sentence? rugby player brings down athlete during the match .
athlete, bring, match, player

What are the keywords in the following sentence? politician looking around on a facility
facility, look, politician

What are the keywords in the following sentence? panning aerial shot over lakes in the wilderness
lake, pan, shot