mtllib yyyy004.lmo.mtl

o yyyy004

v -3.5087 0.0000 0.5278
v -3.5087 0.0000 -0.4722
v 3.4913 0.0000 0.5278
v 3.4913 0.0000 -0.4722
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 0.5224 0.4740
vt 0.5224 0.0142
vt 0.9645 0.4740
vt 0.9645 0.0142

g yyyy004-0_0_0
usemtl yyyy004-0_0-0

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