diff --git a/examples2/grammar/contextFree4.txt b/examples2/grammar/contextFree4.txt
new file mode 100644
index 0000000000000000000000000000000000000000..99ee5fbcbe370c095b0a1f09ed5561eaabe7ea79
--- /dev/null
+++ b/examples2/grammar/contextFree4.txt
@@ -0,0 +1,10 @@
+CFG (
+{C, D, E, F, S},
+{a, b},
+{S -> b | D S,
+C -> D a F | b | a,
+F -> S D |,
+D -> F E,
+E -> a | D S
+},
+C)