diff --git a/example_sizes.json b/example_sizes.json
new file mode 100644
index 0000000..e6fb329
--- /dev/null
+++ b/example_sizes.json
@@ -0,0 +1,3 @@
+[{"group_id": 11, "group_size": 4},
+    {"group_id": 12, "group_size": 3},
+    {"group_id": 13, "group_size": 2}]
\ No newline at end of file