diff --git a/21/31.txt b/21/31.txt
new file mode 100644
index 0000000..ffc23c7
--- /dev/null
+++ b/21/31.txt
@@ -0,0 +1 @@
+Ngacakuti ingombe yaipaya umwana wamuntu umwaume nangu umwana wamuntu umwana
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 6f69c02..52c3641 100644
--- a/manifest.json
+++ b/manifest.json
@@ -270,6 +270,7 @@
 		"21-20",
 		"21-22",
 		"21-26",
+		"21-28",
 		"23-title",
 		"23-01",
 		"23-04",