What are the keywords in the following sentence? red crowned aka cranes on a snowy field on the part
crane, crown, field

What are the keywords in the following sentence? build a wooden fishing boat or canoe from plans
build, canoe, plan

What are the keywords in the following sentence? the wake behind a ship at sea seen from a deck at the aft end
deck, end, ship

What are the keywords in the following sentence? tips on building your first home .
build, home, tip