diff --git a/source b/source
index 938fe567c67..8af7599aa91 100644
--- a/source
+++ b/source
@@ -67088,7 +67088,7 @@ customElements.define("x-foo", class extends HTMLElement {
 
   <ol>
    <li><p>Let <var>agent</var> be the <span>similar-origin window agent</span> <var>element</var>'s
-   <span>relevant Realm</span> belongs to.
+   <span data-x="concept-relevant-realm">relevant Realm</span> belongs to.
 
    <li><p>Let <var>reactionsStack</var> be <var>agent</var>'s <span>custom element reactions
    stack</span>.
@@ -67228,7 +67228,7 @@ customElements.define("x-foo", class extends HTMLElement {
 
   <ol>
    <li><p>Let <var>agent</var> be the <span>similar-origin window agent</span> this object's
-   <span>relevant Realm</span> belongs to.
+   <span data-x="concept-relevant-realm">relevant Realm</span> belongs to.
 
    <li><p><span data-x="stack push">Push</span> a new <span>element queue</span> onto
    <var>agent</var>'s <span>custom element reactions stack</span>.</p></li>
@@ -105864,7 +105864,7 @@ dictionary <dfn>StorageEventInit</dfn> : <span>EventInit</span> {
    <li><p>Let <var>document</var> be <var>intended parent</var>'s <span>node document</span>.</li>
 
    <li><p>Let <var>agent</var> be the <span>similar-origin window agent</span> <var>document</var>'s
-   <span>relevant Realm</span> belongs to.
+   <span data-x="concept-relevant-realm">relevant Realm</span> belongs to.
 
    <li><p>Let <var>local name</var> be the tag name of the token.</p></li>
 
@@ -105981,7 +105981,7 @@ dictionary <dfn>StorageEventInit</dfn> : <span>EventInit</span> {
    itself.</p></li>
 
    <li><p>Let <var>agent</var> be the <span>similar-origin window agent</span> <var>element</var>'s
-   <span>relevant Realm</span> belongs to.
+   <span data-x="concept-relevant-realm">relevant Realm</span> belongs to.
 
    <li>
     <p>If it is possible to insert <var>element</var> at the <var>adjusted insertion location</var>,