Dot-dash is "A"; a dot then a dash is these 2 letters, also a Spielberg movie title
Check out the title sequence -- three dots and a dash appear on the screen, ... for 
the letter "V," made famous by Churchill's hand sign as a determination to defeat 
the... [DOC] [TLE] Going Negative by Jason Guriel - Poetry Magazine [PAR] This is because negative reviews of movies (and LPs and TV shows, etc.)