What are the keywords in the following sentence? leather sofa around wooden table on a luxury yacht
leather, table, yacht

What are the keywords in the following sentence? wish i had a horse that purple would look good with .
horse, look, wish

What are the keywords in the following sentence? A bear rests next to a tree on a rock.
bear, rest, rock, tree

What are the keywords in the following sentence? a helicopter carrying the queen and the duke arrives this morning
arrive, carry, duke, helicopter, queen