Exported all problems from the SQLite database into the new directory structure.

2 files changed, 39 insertions, 0 deletions

diff --git a/prolog/problems/family_relations/cousin_2/common.py b/prolog/problems/family_relations/cousin_2/common.py
new file mode 100644
index 0000000..9285a80
--- /dev/null
+++ b/prolog/problems/family_relations/cousin_2/common.py
@@ -0,0 +1,26 @@
+id = 99
+group = 'family_relations'
+number = 6
+visible = True
+facts = 'family_relations'
+
+solution = '''\
+sister99(X, Y) :-
+  parent(P, X),
+  parent(P, Y),
+  female(X),
+  X \== Y.
+
+brother99(X, Y) :-
+  parent(P, X),
+  parent(P, Y),
+  male(X),
+  X \== Y.
+
+cousin(X, Y) :-
+  parent(PX, X),
+  parent(PY, Y),
+  ( brother99(PX, PY)
+    ;
+    sister99(PX, PY) ).
+'''
diff --git a/prolog/problems/family_relations/cousin_2/en.py b/prolog/problems/family_relations/cousin_2/en.py
new file mode 100644
index 0000000..72faa60
--- /dev/null
+++ b/prolog/problems/family_relations/cousin_2/en.py
@@ -0,0 +1,13 @@
+id = 99
+name = 'cousin/2'
+slug = 'the cousin relation'
+
+description = '''\
+<p><code>cousin(X, Y)</code>: <code>X</code> is a cousin (male or female) of <code>Y</code>.</p>
+<pre>
+  ?- cousin(andrew, X).
+    X = vanessa ;
+    X = patricia.
+</pre>'''
+
+hint = {}