Mishandling of Unicode

[jacintodavila]

As in this case, from:

Un dragón humea
si un viejo dragón es padre de el dragón
y el viejo dragón humea.

it gets as Prolog clause:

humea(A) :-
es_padre_de(un_viejo_dragón, el_drag_ón),
humea(A).

So, the translation (tokenization) is inconsistent.