Read act IV of Twelfth Night. Then arrange the following events in order from earliest to latest.

1. Sebastian thinks that he is suffering from memory loss or has gone mad.
2. Feste, disguised as Sir Topas, ridicules Malvolio in the dark cell.
3. Sebastian meets Feste, who mistakes him for Viola/Cesario.
4. Olivia mistakenly thinks Sebastian is Cesario.
5. Olivia gets a priest and marries Sebastian, still thinking he is Cesario.