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diff --git a/prolog/problems/lists/sum_2/sl.py b/prolog/problems/lists/sum_2/sl.py
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+++ b/prolog/problems/lists/sum_2/sl.py
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+# coding=utf-8
+
+name = 'sum/2'
+slug = 'Izračunaj vsoto elementov v seznamu'
+
+description = '''\
+<p><code>sum(L, Sum)</code>: <code>Sum</code> je vsota vseh elementov v seznamu <code>L</code>.</p>
+<pre>
+  ?- sum([1,2,3], Sum).
+    Sum = 6.
+</pre>'''
+
+hint = {}