2 files changed, 23 insertions, 0 deletions
diff --git a/prolog/problems/dcg/flower_2/common.py b/prolog/problems/dcg/flower_2/common.py
new file mode 100644
index 0000000..d380722
--- /dev/null
+++ b/prolog/problems/dcg/flower_2/common.py
@@ -0,0 +1,13 @@
+id = 163
+group = 'dcg'
+number = 70
+visible = True
+facts = None
+
+solution = '''\
+flower --> iflower163.
+flower --> [+], flower, [+].
+
+iflower163 --> [-].
+iflower163 --> [-], iflower163.
+'''
diff --git a/prolog/problems/dcg/flower_2/en.py b/prolog/problems/dcg/flower_2/en.py
new file mode 100644
index 0000000..85d1e73
--- /dev/null
+++ b/prolog/problems/dcg/flower_2/en.py
@@ -0,0 +1,10 @@
+id = 163
+name = 'flower/2'
+slug = 'words like +++--+++'
+
+description = '''\
+<p>Write a DCG with the starting symbol <code>flower</code> for the language <code>+<sup>n</sup>-<sup>m</sup>+<sup>n</sup></code>, where m > 0 and n ≥ 0.</p>
+<p>Example words: <code>-</code>, <code>++-++</code>, <code>+---+</code>.</p>
+'''
+
+hint = {}