This is how this works:
P1 Say 5 random letters (in bold)
P2 Uses those to make a sentace and then puts a new 5 letters
P3 AND SO FORTH
EXAMPLE
P1:  GJDFS
P2:  Goats Jump Devilous Farting Ships
     FDJNK
P3: Friendly Dukes Juggle Neat Kings
    DFGKG
P4 AND SO FORTH\\
I START:  START