List all XML tag elements

I am creating a speech recognition grammar using XML. I have the following XML code below. When a speech is recognized, I want to retrieve two tags. The person addressed and what greeting was used. I am unable to get any tags except for the latest generated tag for the speechEngine.result. How do I get both tags?

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

  <rule id="topLevel" scope="public">
    <one-of>
      <item><ruleref uri="#helloSequence" /></item>
    </one-of>
  </rule>

  <rule id="helloSequence" scope="public">
      <item><ruleref uri="#greetinglist"/></item>
      <item><ruleref uri="#personlist"/></item>
  </rule>

  <rule id="personlist" scope="public">
    <one-of>
      <item>miyuki<tag>out.person="miyuki";</tag></item>
      <item>lily<tag>out.person="lily";</tag></item>
    </one-of>
  </rule>

  <rule id="greetinglist" scope="public">
    <one-of>
      <item>hey<tag>out.greeting="hey";</tag></item>
      <item>hi<tag>out.greeting="hi";</tag></item>
    </one-of>
  </rule>

</grammar>

My Code for reading semantic values:

static void speechEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
    {
        //DEBUG DATA
        Console.WriteLine("Recognized text:\t" + e.Result.Text);
        Console.WriteLine("Confidence score:\t" + e.Result.Confidence);
        Console.WriteLine("Semantic Count:\t\t" + e.Result.Semantics.Count);

        if (e.Result.Semantics.ContainsKey("greeting"))
        {
            Console.WriteLine("TAG DATA\t\tGreeting tag:\t" + e.Result.Semantics["greeting"].Value.ToString());
        }
        else
        {
            Console.WriteLine("TAG DATA\t\tGreeting tag:\tNO GREETING TAG VALUE");
        }
        if (e.Result.Semantics.ContainsKey("person"))
        {
            Console.WriteLine("TAG DATA\t\tPerson tag:\t" + e.Result.Semantics["person"].Value.ToString());
        }
        else
        {
            Console.WriteLine("TAG DATA\t\tPerson Tag:\tNO PERSON TAG VALUE");
        }
    }

So if I input "hey lily", I only get

Recognized text: hey lily
Confidence score: 0.99
Semantic Count: 1
Greeting tag: NO GREETING TAG VALUE
Person tag: lily

Any help is greatly appreciated!!