What are the keywords in the following sentence? A full moon appears, half hidden by clouds.
appear, cloud, moon

What are the keywords in the following sentence? a tourist boat on the way to the island
boat, island, way

What are the keywords in the following sentence? Someone tosses his burning wand in to the fire.
burn, fire, wand

What are the keywords in the following sentence? The direction of the scrolling letters change from bottom to top and now they're in the middle.
change, direction, letter, middle, top