What would be a counterexample to show that this conditional statement is false?

';If line segment AB 鈮?(is congruent to) line segment BC, then B is the midpoint of line segment AC.';


Please tell me some counterexamples to show that the above conditional statement is false?What would be a counterexample to show that this conditional statement is false?
the counter example would be if say line segment AB was perpendicular to line segment BC which would make line segment AC a line that does not connect AB and BC but rather a completely different line segment.





So a correct conditional statement would be:


If line segment AB is congruent to line segment BC and they are consecutive then B is the midpoint of line segment AC