prolog/problems/family_relations/father_2/en.py


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# coding=utf-8

name = 'father/2'
slug = 'the father-child relation'

description = '''\
<p><code>father(X, Y)</code>: <code>X</code> is the father of <code>Y</code>.</p>
<pre>
  ?- father(thomas, william).
    true.
  ?- father(aleksander, X).
    X = luana ;
    X = daniela.
</pre>'''

hint = {}