<http://schema.org/url>
<http://books.simonandschuster.com:80/Sesame-Street-Guess-Who-Elmo!/Wendy-Wax/Guess-Who/9780794412111>
<http://books.simonandschuster.com/Sesame-Street-Guess-Who-Elmo!/Wendy-Wax/Guess-Who/9780794412111>