diff --git a/data/once/ImageSets/val.txt b/data/once/ImageSets/val.txt
new file mode 100644
index 0000000..2562b4c
--- /dev/null
+++ b/data/once/ImageSets/val.txt
@@ -0,0 +1,4 @@
+000027
+000028
+000112
+000201