mtllib yyyy003.lmo.mtl

o yyyy003

v -3.5595 0.0000 0.4788
v -3.5595 0.0000 -0.5212
v 3.4405 0.0000 0.4788
v 3.4405 0.0000 -0.5212
vn 0.0000 0.0000 1.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 0.0000 1.0000
vt 0.0000 0.4880
vt 0.0000 0.0000
vt 0.4639 0.4880
vt 0.4639 0.0000

g yyyy003-0_0_0
usemtl yyyy003-0_0-0

s off
f 1/1/1 3/3/3 2/2/2 
f 4/4/4 2/2/2 3/3/3