... </head> <body> <header> <h1>Welcome to the Future World of HTML5 </h1> <h2>Don't be scared it isn't that hard!</h2> </header> <! ... id="parentname"><span itemprop="name">Thomas</span></span> has a daughter named <span id="childname"><span itemprop="name">Olivia</span> </span>. ... itemprop="home">A's</span>.<br> <meta itemprop="city" content="Oakland"> </div>If the item is set to one of the predefined types, then...