What are the keywords in the following sentence? this tote bag is made of a beautiful waxed canvas .
bag, canvas, wax

What are the keywords in the following sentence? The band has left the building.
band, building, leave

What are the keywords in the following sentence? duck shaped cloud in a blue sky
cloud, shape, sky

What are the keywords in the following sentence? African soldier carrying a fly covered AK-47 over his shoulder.
cover, shoulder, soldier