##Overlap elements
##overlap parallel layout angle slant arrow degree
##You can prepend any element with the 'overlap' keyword. This causes the specified element to be ignored when the subsequent elements are laid out - the subsequent element may be drawn on top of the one marked with 'overlap'.##This is similar to the 'parallel' keyword, but using that will still avoid overlaps.
hscale=1.5;
angle=10;
H1: Host 1;
H2: Host 2;
overlap H1->H2: \plMessage1;
H2->H1: \prMessage2;
