!
! Example 7 from Terwilliger & Ott --
! consanguinuity loops incl double first cousin marriage
!
1 1 x x f n 1 2
1 2 x x m n 3 4
1 3 2 1 m x x x
1 4 x x f x x x
1 5 2 1 f n 1 4
1 6 x x m n 2 3
1 7 3 4 f n 1 4
1 8 6 5 m n 1 3
1 9 3 4 f n 1 2
1 10 6 5 m n 1 2
1 11 8 7 m y 1 1
1 12 8 7 f n 1 3
1 13 10 9 m n 1 2
1 14 10 9 f y 1 1
1 15 13 12 f y 1 1
1 16 13 12 f y 1 1
1 17 13 12 f y 1 1
! end-of-example-7
