# Command

v 0.1 0.2 0.3
v 0.2 0.3 0.4
v 0.3 0.4 0.5
v 1.1 1.2 1.3
v 1.2 1.3 1.4
v 1.3 1.4 1.5
v 2.1 2.2 2.3
v 2.2 2.3 2.4
v 2.3 2.4 2.5
vn 0.15 0.25 0.35
vn 0.25 0.35 0.45
vn 0.35 0.45 0.55
vt 0.9 0.8
vt 0.8 0.7
f 1/1/1 2/2/2 3/3/2
o test
f 4/3/2 5/2/1 6/1/2
g test
f 7/2/2 8/3/2 9/1/1
o
f 8/1/1 5/2/2 3/3/2
g
f 2/1/1 6/2/2 4/3/2
h this line is skipped