我对additionalType属性有疑问。我想知道两件事。首先，我在这两个例子中都正确编码。第二，最好不要使用它，而只是在每个实例中使用不同的类型。例如，本地业务信息每页重复至少4次，我每次只能使用不同的类型。与所提供服务的描述相同。任何意见是极大的赞赏。
<section itemscope itemtype="http://schema.org/LocalBusiness">
<link itemprop="additionalType" href="http://schema.org/SportsActivityLocation"/>
<link itemprop="additionalType" href="http://schema.org/ExerciseGym"/>
<header>
<h5 class="Bold DarkBlue TextCenter MyriadFont"><span class="DarkRed" itemprop="telephone">Call 201-230-2036</span><br />
</header>
<span itemprop="name">Martial Arts School Name</span><br />
<div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
<span itemprop="streetAddress">24 Bortker Street</span>
<span itemprop="addressLocality">Brentwood</span>,
<span itemprop="addressRegion">Ca</span>
<span itemprop="postalCode">07565</span>
</div>
</h5>
<br />
<br />
</section>
<section itemscope itemtype="http://schema.org/LeisureTimeActivity">
<link itemprop="additionalType" href="http://schema.org/AnaerobicActivity"/>
<link itemprop="additionalType" href="http://schema.org/StrengthTraining"/>
<header>
<h5 itemprop="BusinessFunction" class="DarkBlue MyriadFont">Try These Martial Arts Programs FREE for 30 Days:</h5>
</header>
<br />
<div class="TextNormal" style="padding-left:50px;">
<hgroup>
<h1 class="Bold" itemprop="BusinessFunction" >Gracie Brazilian Jiu-Jitsu</h1>
<p>Learn the single most effective self-defense system on Earth (and the official hand-to-hand combat system of the U.S. Military) from a Gracie-trained Black Belt with multiple champion titles ... Click Here For The Best <a itemprop="URL" href="//www.martialarts.com/brazilian-jiujitsu.html" class="Bold DarkRed"><u> BJJ In Broter County CA</u></a></p>
<br /><br />
</hgroup>
</div>
</section>