What are the keywords in the following sentence? an abandoned tank after military conflict ends a city
conflict, end, tank

What are the keywords in the following sentence? His face twisted with anger, someone grabs someone viciously and peers into his face.
anger, face, twist

What are the keywords in the following sentence? Two adult zebras run across an open plain.
plain, run, zebra

What are the keywords in the following sentence? members load cargo onto military transport aircraft before it departs airport
aircraft, airport, cargo