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+id = 94
+name = 'mother/2'
+slug = 'the mother-child relation'
+
+description = '''\
+<p><code>mother(M, C)</code>: <code>M</code> is the mother of <code>C</code>.</p>
+<pre>
+ ?- mother(tina, william).
+ true.
+ ?- mother(nevia, X).
+ X = luana ;
+ X = daniela.
+</pre>'''
+
+hint = {}