"Insert a semicolon at the end" error despite existing semicolon

I've browsed through the responses to previous instances of this problem and I cannot find an answer that resolves the error in my own script. So I am re-posting what I know is a common and probably obvious error. Thanks in advance for the help.

The errors begin toward the bottom, beginning with the line that says " }else(attackElf.tag == "youngElf")"

     import System.Linq;
 
 
 private var availablePositions : List.<Transform>;
 //Allows assignation through the Inspector of the two possible positions from which the Spawn function will
 //later randomly select.
 var blackElves : GameObject[];
 //Populates array with enemy elves
 var fatElfCompanion : GameObject;
 var shortElfCompanion : GameObject;
 var strongElfCompanion : GameObject;
 var smartElfCompanion : GameObject;
 var fastElfCompanion : GameObject;
 var toughElfCompanion : GameObject;
 var uglyElfCompanion : GameObject;
 var youngElfCompanion : GameObject;
 //links each enemy elf with a partner
 
 
 function Start () 
 {
 availablePositions = attackPositions.ToList();
 }
 //lists available attack positions of enemy elf and his partner.
 
 function Update () {
 
 }    
 
 function OnTriggerEnter(col : Collider)
 {
     if(col.gameObject.tag == "Player")
     {
         yield new WaitForSeconds(3.0);
         Spawn;
     }
 }
 //When player enters this zone, the function "Spawn" is called after three seconds.
 
 function Spawn ()
 {
     var position = availablePositions[Random.Range(0, availablePositions.Length)];
     availablePositions.Remove(position);
     //One position is selected at random from two possibilities. The position selected is removed from set of possibilities.
     var attackElf = Instantiate(blackElves[(Random.Range(0, blackElves.Length))], position.position, Quaternion.identity);
     //One of the enemy elves is selected from the array and named "attack Elf". It is assigned to the randomly selected position.
     if(attackElf.tag == "fatElf")
     {
         var companionElf = Instantiate(fatElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else if(attackElf.tag == "shortElf")
     {
         var companionElf = Instantiate(shortElfCompanion, availablePositions[0].position, Quarternion.identity);
     }else if(attackElf.tag == "strongElf")
     {
         var companionElf = Instantiate(strongElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else if(attackElf.tag == "smartElf")
     {
         var companionElf = Instantiate(smartElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else if(attackElf.tag == "fastElf")
     {
         var companionElf = Instantiate(fastElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else if(attackElf.tag == "toughElf")
     {
         var companionElf = Instantiate(toughElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else if(attackElf.tag == "uglyElf")
     {
         var companionElf = Instantiate(uglyElfCompanion, availablePositions[0].position, Quaternion.identity);
     }else(attackElf.tag == "youngElf")
     {
         var companionElf = Instantiate(youngElfCompanion, availablePositions[0].position, Quaternion.identity);
     }
 }
 
 
 //A second, "Companion Elf" is instantiated at the other remaining position. It is not selected at random. It
 //must be the concomitant of the "Attack Elf" previously selected.