What are the keywords in the following sentence? the spacecraft launches on a rocket propelling astronaut toward orbit .
launch, rocket, spacecraft

What are the keywords in the following sentence? clouds draped over the cliffs on a stormy day at sea .
cliff, day, sea

What are the keywords in the following sentence? Two hotdogs in white paper with lots of toppings.
hotdog, lot, topping

What are the keywords in the following sentence? the incredibly powerful waves at the coast during the surge
coast, surge, wave