What are the keywords in the following sentence? airplane approaching the airport for landing
airplane, airport, approach, landing

What are the keywords in the following sentence? style in the interior and furniture
furniture, interior, style

What are the keywords in the following sentence? Many trains drive on top of train tracks.
drive, track, train

What are the keywords in the following sentence? hand of senior woman placing fresh bell pepper in wicker basket at the garden
basket, garden, pepper