Dainger lies beore you, while safty lies behind,
　Two of us will help you, whichever you would find,
　One among us seven will let you move ahead,
　Another will transport the drinker back instead,
　Two among our number hold only nettle wine,
　Three of us are killers, waiting hidden in line,
　Chose, unless you wish tostay here for everymore,
　To help you in choice, we give you these clues four,
　 First, fowever slyly the poison trie to hide
　You will always find some on nettle wine's left side;
　Second, different are those who stand at either end,
　But you would move onwards, neithr is our friend;
　Third, as you see clearly, all are different size,
　Neither dwalf nor giant holds death in their insides;
　Fourth, the second left and the second on the right
　Are twins once you taste them, though different at first sight.

　J. K. Rowring Harry Potter and the Philosopher's Stone, Bloomsbury Publishing Plc (1997)