Your schema is incomplete:

--
You received this message because you are subscribed to the Google Groups "OpenRefine" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openrefine+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openrefine/cee1057d-2c42-49c3-bcff-97b91b9d9648n%40googlegroups.com.