What are the keywords in the following sentence? a hotdog in a bun with mustard on it
bun, hotdog, mustard

What are the keywords in the following sentence? silhouettes of boats in the sea at sunset
boat, sea, silhouette, sunset

What are the keywords in the following sentence? pier looking out to sea with a red fisherman at the end
fisherman, pier, sea

What are the keywords in the following sentence? In one lifeboat, someone and someone stare at the ship.
lifeboat, ship, stare