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diff --git a/prolog/problems/family_relations/father_2/en.py b/prolog/problems/family_relations/father_2/en.py
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+++ b/prolog/problems/family_relations/father_2/en.py
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+# coding=utf-8
+
+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 = {}