What are the keywords in the following sentence? red bridge over a creek in a snowy lake
bridge, creek, lake

What are the keywords in the following sentence? flowing water at the top of a waterfall
flow, water, waterfall

What are the keywords in the following sentence? Large poster on wall behind white commode in dark tiled bathroom.
bathroom, commode, wall

What are the keywords in the following sentence? dolphins swimming in front of the bow of a ship at slow speed
dolphin, front, ship, speed, swim