What are the keywords in the following sentence? football player fails to save during a training session
player, save, session

What are the keywords in the following sentence? the chair for restaurants and bars .
bar, chair, restaurant

What are the keywords in the following sentence? building in the old city seen from the bell tower of church historic centre
building, centre, tower

What are the keywords in the following sentence? Several people in a choir are singing and being led by a director.
choir, director, singe