!
! Lin et al's bad example, just the half-sibs
!
1 1 x x m x x
1 2 x x f x x 
1 3 x x m x x
1 4 1 2 m 2 3
1 5 1 2 m 1 4
1 6 3 2 m 2 3
1 7 3 2 m 1 1
!
! And again, with grandparents
!
2 8 x x m x x
2 9 x x f x x
2 1 8 9 m x x
2 2 x x f x x 
2 3 x x m x x
2 4 1 2 m 2 3
2 5 1 2 m 1 4
2 6 3 2 m 2 3
2 7 3 2 m 1 1
! end-of-pedigrees
