O: (0, 0, 0)
G0: g(0)
H0: h(0)
G1: g(1)
u = Vector(O, G0)
v = Vector(G0, G1)
H1: h(1)
w = Vector(O, H0)
a = Vector(H0, H1)
S: g(2)
J0: j(0)
J1: j(1)
b = Vector(O, J0)
c = Vector(J0, J1)
I0: i(0)
I1: i(1)
d = Vector(O, I0)
e = Vector(I0, I1)