What are the keywords in the following sentence? politician is joined by her husband as she speaks at event .
husband, join, politician

What are the keywords in the following sentence? A four post bed with hanging curtains around it
bed, curtain, hang

What are the keywords in the following sentence? large planes stopped at the airport
airport, plane, stop

What are the keywords in the following sentence? the ring road and newly constructed district with multistory buildings .
building, district, road