What are the keywords in the following sentence? small airplane is flying over the city during a cloudy evening .
airplane, evening, fly

What are the keywords in the following sentence? our large fleet ensures we supply the most suitable vehicle for your job
fleet, supply, vehicle

What are the keywords in the following sentence? mother with baby son on the meadow playing with dandelion flower
flower, meadow, mother, son

What are the keywords in the following sentence? plastic garbage washes up on a beach .
beach, garbage, wash