@prefix list: <http://www.w3.org/2000/10/swap/list#>.
@prefix log: <http://www.w3.org/2000/10/swap/log#>.
@prefix : <http://example.org/ns#>.

:Norwegian :drinks :water.
:Japanese :owns :zebra.
:riddle :houses ((:yellow :Norwegian :fox :water :Kools) (:blue :Ukrainian :horse :tea :Chesterfields) (:red :Englishman :snails :milk :Old_Gold) (:ivory :Spaniard :dog :orange_juice :Lucky_Strike) (:green :Japanese :zebra :coffee :Parliaments)).

