GDL Pgon code issue

[RhinoX]

Hi everyone, I’m still learning GDL and wrote a simple script to create two triangular polygons using the pgon command. For some reason, it keeps throwing an error and I can’t figure out why. Any help would be much appreciated. Thanks!

vert 0.00, 0.00, 0.00 ! 01
vert 1.00, 0.00, 0.00 ! 02
vert 1.00, 1.00, 0.00 ! 03
vert 0.00, 1.00, 0.00 ! 04

edge 1, 2, 1, 0, 0 ! 01
edge 2, 3, 1, 0, 0 ! 02
edge 3, 1, 1, 2, 0 ! 03
 
edge 3, 4, 1, 0, 0 ! 04
edge 4, 1, 1, 0, 0 ! 05

vect 0, 0, 1
vect 0, 0, 1
 
pgon 3, 1, 0, 1, 2, 3
pgon 3, 2, 0, 4, 5, -3

Operating system used: Mac Intel-based

[Lingwisyer]

I have not tried using pgons, but does it work without the the vert 4 points?