diff --git a/ulo/extract-iris.sh b/ulo/extract-iris.sh
new file mode 100755
index 0000000000000000000000000000000000000000..cd42f55990199b88faa58b7c8001489c6138e42d
--- /dev/null
+++ b/ulo/extract-iris.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+# extract iris from rdf files passed on stdin; really it just returns all
+# quoted strings
+
+set -eu
+
+grep -P -o '".*"' | sed 's/"//g'