From d0dd9cd28eec6007c2f80737a47895498b0ee9f7 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@fri.uni-lj.si>
Date: Tue, 18 Oct 2016 16:26:00 +0200
Subject: Prolog: add more world_data exercises

---
 prolog/problems/world_data/flows_2/en.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 prolog/problems/world_data/flows_2/en.py

(limited to 'prolog/problems/world_data/flows_2/en.py')

diff --git a/prolog/problems/world_data/flows_2/en.py b/prolog/problems/world_data/flows_2/en.py
new file mode 100644
index 0000000..f108001
--- /dev/null
+++ b/prolog/problems/world_data/flows_2/en.py
@@ -0,0 +1,20 @@
+name = 'flows/2'
+slug = ''
+
+description = '''\
+<p><code>flows(X, Y)</code>: the river <code>X</code> flows to sea <code>Y</code>.
+The predicate should follow the flow from <code>X</code> through different rivers
+until it reaches a sea - for example, Drina flows into Save, which flows into Donau,
+ending in the Black Sea:</p>
+<pre>
+?- flows('Drina', Y).
+  Y = 'Black Sea'.
+</pre>
+<p>River data is given by the predicate</p>
+<pre>
+river(Name, FlowsToRiver, FlowsToLake, FlowsToSea, Length, Area,
+      SourceLat, SourceLon, SourceElevation, MouthLat, MouthLon).
+</pre>
+'''
+
+hint = {}
-- 
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