A = (0, 0)
B = (5, 0)
a = Segment(A, B)
C = (7, 1)
b = Segment(B, C)
D = (2, 1)
c = Segment(C, D)
d = Segment(D, A)
E = (0, 4)
F = (5, 4)
e = Segment(A, E)
f = Segment(E, F)
g = Segment(F, B)
G = (7, 5)
H = (2, 5)
h = Segment(C, G)
i = Segment(G, H)
j = Segment(H, D)
k = Segment(F, G)
l = Segment(E, H)