4 4
A<B
C<D
D<C
B<C

2 2
A<A
A<B

6 5
A<D
B<C
A<B
D<E
C<D

6 6
A<D
B<C
E<F
B<A
D<E
A<B

6 6
D<E
B<F
A<D
F<C
A<F
E<B

3 3
A<B
B<C
C<A

4 6
A<B
A<C
B<C
C<D
B<D
A<B

3 2
A<B
B<A

2 2
A<B
B<A

26 1
A<Z

0 0
-------------------------
Inconsistency found after 3 relations.
Inconsistency found after 1 relations.
Sorted sequence cannot be determined.
Inconsistency found after 6 relations.
Sorted sequence determined after 6 relations: ADEBFC.
Sorted sequence determined after 2 relations: ABC.
Sorted sequence determined after 4 relations: ABCD.
Inconsistency found after 2 relations.
Sorted sequence determined after 1 relations: AB.
Sorted sequence cannot be determined.