Семантическая интерпретация SRGS в C#

Я начинаю работать с Microsoft Hololense прямо сейчас и хочу написать простую программу на C#, включая распознавание речи. Как я могу получить доступ к значению тега «да» из grxml в моей программе на C#? Вот код

Colors.grxml

<grammar xml:lang = "en-US" 
     root = "yesOrNo"
     version = "1.0" 
     tag-format = "semantics/1.0"
     xmlns = "http://www.w3.org/2001/06/grammar">

<!-- The following rules recognize variants of yes and no. -->
  <rule id = "yesOrNo">
     <one-of>
        <item>
          <one-of>
             <item>yes</item>
             <item>yeah</item>
             <item>yep</item>
             <item>yup</item>
             <item>un huh</item>
             <item>yay yus</item>
          </one-of>
          <tag>out = "yes";</tag>
        </item>
        <item>
          <one-of>
             <item>no</item>
             <item>nope</item>
             <item>nah</item>
             <item>uh uh</item>
           </one-of>
           <tag>out = "no";</tag>
        </item>
     </one-of>
  </rule>

Теперь C#:

private async void btnStartRecognition_Click(object sender, RoutedEventArgs e)
    {
        // Create an instance of SpeechRecognizer.
        var speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();

        // Add a grammar file constraint to the recognizer.
        var storageFile = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Colors.grxml"));
        var grammarFileConstraint = new Windows.Media.SpeechRecognition.SpeechRecognitionGrammarFileConstraint(storageFile, "colors");

        speechRecognizer.UIOptions.ExampleText = @"Ex. 'yes', 'yeah'";
        speechRecognizer.Constraints.Add(grammarFileConstraint);

        // Compile the constraint.
        await speechRecognizer.CompileConstraintsAsync();

        // Start recognition.
        Windows.Media.SpeechRecognition.SpeechRecognitionResult speechRecognitionResult = await speechRecognizer.RecognizeWithUIAsync();

        //Here i want to access the Tag-Value "Yes" if the user said yeah. 
        //I tried speechRecognitionResult.SemanticInterpretation.ToString

    }