What are the keywords in the following sentence? chickens are walking in the pen of the coop
chicken, coop, walk

What are the keywords in the following sentence? pillars and ceiling of roman catholic place of worship
pillar, place, worship

What are the keywords in the following sentence? pulling into train station in the beautiful city
city, pull, station

What are the keywords in the following sentence? entertainer performs a musical tribute to tejano artist onstage at awards presented business .
award, business, perform, present