What's wrong with this script?

I keep getting this error : (6,32): BCE0043: Unexpected token: …

The script:

var texture : GameObject; //place your guitexture here

function Start() {
	texture.enabled = false;
}
function OnMouseDown(GameObject.FindGameObject("paper") {
	texture.enabled = true;
}
function Update() {
	if(Input.GetKeyDown (KeyCode.E))
	{
		texture.enabled = false;
	}
}

I’m guessing this is what you’re trying to do?

var texture : GameObject; //place your guitexture here
 
function Start() {
    texture = GameObject.FindWithTag("paper"); 
    texture.enabled = false;
}
function OnMouseDown() {
    texture.enabled = true;
}
function Update() {
    if(Input.GetKeyDown (KeyCode.E))
    {
        texture.enabled = false;
    }
}

void Update()
{
//find out what are you clicking on by firing a ray from it
if(Input.GetMouseButtonDown(0))
{
RaycastHit hit = new RaycastHit();
ray=Camera.main.ScreenPointToRay(Input);
if (Physics.Raycast(ray, out hit)){
if(hit.collider.tag==“paper”){
texture=hit.collider.gameObject;
//before enabling you should convert game object to texture
texture.enable=true;
}
}

		}
	}