To type in short letters you begin by typing
letters
multiletter
This command is to be followed by the text of your letter.
What
multiletter does is tell PHYZZX to file away the
material to follow in the depths of its memory, to be used later.
You let PHYZZX know to stop stuffing stuff away by typing
letterend
when you have finished.
Having now saved the body of the letter for future use you
generate your letters by typing
letter{ Addressee }
followed by
Dear Mr. Soandso
par
followed by the commands
lettertext
endletter
As you will have guessed the command
lettertext
is the name PHYZZX has assigned to the body of the
letter.