What joke made this Leyton class the funniest in Britain? - ÃÛÑ¿´«Ã½ Sounds

What joke made this Leyton class the funniest in Britain? - ÃÛÑ¿´«Ã½ Sounds
What joke made this Leyton class the funniest in Britain?
The Year 5 pupils in east London won the public vote with a pun about punctuation.