What are the keywords in the following sentence:

On the bridge, the helmsman turns the ship's wheel.
bridge, turn, wheel
Vilka är nyckelorden i följande mening: På bryggan vrider rorsmannen fartygets hjul.
What are the key words in the following sentence: On the bridge, the helmsman twists the ship's wheels.
bro, sväng, hjul
bridge, turn, wheel