OK - here's a new one:
---- / ---- / ---'- / ----- / --- / ------ / ------ / --- / -----'- / - / --- / ---- / - / ---- / -- / --...
--, / ----, / ----- / ---'-- / --- / ---- / -- / ---- / --- / ---.
Should I tell you now that there are some numbers in this? Or just let you figure it out later when one "word" has no letters?