Fails Google’s Structured Data Test Tool

Google expects the last id to be a url. The test tool reads:
The value provided for item.id must be a valid URL.

For example:
a > b > c

While A and B are links, C is not.

If i enable Link current item in the backend, I get 19 Errors the id’s will be as follows

http://ogp.me/ns#locale
http://ogp.me/ns#type
http://dev.twitter.com/docs/cards#title
http://www.w3.org/1999/xhtml/vocab#alternate
http://www.w3.org/1999/xhtml/vocab#alternate

The property http://www.w3.org/1999/xhtml/vocab#alternate of an object of type WebPage is not recognized by Google.

Please let me know if there is any solution to this?