Problem with for... in loop

Hello :)

I need to have several tags on one object, so I used a solution I found online, which is to parent my object to an EmptyGameObject which has the tag on it and then let the code find the parent to that object.

My problem is that I always get an "enumerable" error when it comes to the "for... in" loop I'm using.

This is the script:

 var curs : UI.Image;
 public var sensedObjects : GameObject;
 
 function Start () {
     sensedObjects = GameObject.FindWithTag("ben");
 }
 
 function Update () {
 var hit : RaycastHit;
 var ray : Ray = Camera.main.ScreenPointToRay(Vector3(Screen.width*0.5, Screen.height*0.5,0));
         
         //On Mouse Click: Pick up Objects with tag "eins" when looked at
         if(Input.GetMouseButtonDown(0) && Physics.Raycast(ray, hit, 100) && hit.collider.gameObject.tag == "eins"){
             Destroy(hit.transform.gameObject);
         }
                 
         //Change cursor colour when looked at object has tag "eins"
         if(Physics.Raycast(ray, hit, 100) && hit.collider.gameObject.tag == "eins"){
             curs.color = Color(0.7,0.8,0.9,1);
         } else {
             curs.color = Color.white;
         }
         
         //Find Objects with Child tagged "ben" and change cursor colour when looked at
         for (var foundOne : Transform in sensedObjects){
         
             var objectMain = foundOne.transform.parent.gameObject;
             
                 if(Physics.Raycast(ray, hit, 100)){
                     Debug.Log("Look, there's something!");
                     curs.color = Color(0.7,0.8,0.9,1);
                 } else {
                     curs.color = Color.white;
                 }        
         }
 }

I've tried replacing "Transform" with "GameObject", but it doesn't make a difference.

Does anyone know what to do or is there another way to solve my problem?

Thanks in advance ;)