// Lukas says: can you tell me why the third pattern below doesn't match?

import scala.xml._

object PatternMatch2 extends Application {
  val book: Node = <telbook>
      <entry>
       <name>Luc</name>
        <number>
         <where>mobile</where>
         <num>+41 79 421 30 09</num>
       </number>
        <number>
         <where>home</where>
         <num>+41 21 311 20 04</num>
       </number>
      </entry>
      <entry>
        <name>Bob</name>
        <number>
         <where>home</where>
         <num>+41 31 837 28 28</num>
       </number>
      </entry>
    </telbook>

  (book \ "entry") match {
    case Seq(<entry>{ _* }</entry>, <entry>{ _* }</entry>) =>
Console.println("ok")
  }

  (((book \ "entry")(0)) \ "_") match {
    case Seq(<name>{ _* }</name>, <number>{ _* }</number>, <number>
{ _* }</number>) => Console.println("ok2")
  }

  ((book \ "entry")(0)) match {
    case <entry><name>{ _* }</name><number>{ _* }</number><number>
{ _* }</number></entry> => Console.println("ok3")
  }
}