同一页面上的JSON-LD Schema.org块冲突

Question

Google之类的搜索引擎如何处理信息冲突的带有多个JSON-LD（Schema.org）块的网页？

<script type="application/ld+json">
{   "@context":"http://schema.org",    
    "@type":"WebPage",
    "@id": "#123",
    "author": {
      "@type": "Person",
      "name": "Foo Bar"
    }
}
</script>
<script>
{   "@context":"http://schema.org",
    "@type":"Product",
    "@id": "#9999999999",
  }
</script>