What are the keywords in the following sentence? hundreds of graduates sit inside stadium during the annual graduation ceremony .
ceremony, graduate, sit

What are the keywords in the following sentence? women are offering prayer at a mosque on the eve .
eve, offer, prayer

What are the keywords in the following sentence? Old suitcases piled to the ceiling on a luggage cart make art in an airport
airport, cart, pile, suitcase

What are the keywords in the following sentence? male teacher working with high school students at a desk
desk, student, teacher, work