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diff --git a/prolog/problems/trees/memberbt_2/sl.py b/prolog/problems/trees/memberbt_2/sl.py
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+++ b/prolog/problems/trees/memberbt_2/sl.py
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+name = 'memberBT/2'
+slug = 'poišči element v binarnem drevesu'
+
+description = '''\
+<p><code>memberBT(X, T)</code>: <code>X</code> je element binarnega drevesa <code>T</code>. Vozlišče v binarnem drevesu je predstavljeno s strukturo <code>b(L, E, R)</code>, kjer sta <code>L</code> in <code>R</code> levo in desno poddrevo, <code>E</code> pa je vrednost v tem vozlišču. Prazno drevo predstavlja atom <code>nil</code>.</p>
+<pre>
+?- memberBT(X, b(b(nil,2,nil),1,b(nil,3,nil))).
+  X = 1 ;
+  X = 2 ;
+  X = 3.
+</pre>'''
+
+hint = {}