#Example: "3gp-a-Rel" . . . based on: examples/3gpA
#(exponent 9 group with 2 generators of order 3)
#vars: F, procId, rels;
#options: OutputLevel 
F := FreeGroup("a", "b");
rels := ["a^3", "b^3"];
#alt: do
#procId := PqStart( F );
#comment: set a different print level by supplying <OutputLevel>
#alt: sub <procId> for <F>
Pq( F : Prime := 3, Exponent := 9, Relators := rels, ClassBound := 6,
#sub <OutputLevel> for <1> if set and ok
        OutputLevel := 1 );