Changing text through a cursor hover trigger

Question

in my game I have several house groups (see image below), I want to show a specific message when the mouse hovers a specific house group.

For some reason, this only works on the first switch case (house) but fails on the second switch (house2). The default case doesn't work either. I verified that the case house2 is found by the engine. By not working I mean the text does not appear.

Do you have any idea about the problem? Image: Code: public class MouseIsOver : MonoBehaviour {

private Image TipImage;
private Text textObject;
public string text;
private bool displayInfo;

void Start ()
{
    TipImage = GameObject.Find("realtyInformation").GetComponent<Image>();
    textObject = GameObject.Find("realtyInformationText").GetComponent<Text>();
    TipImage.enabled = false;
}

{
    Display();
}

private void OnGUI()
{

}

void Display ()
{
    if (displayInfo)
    {
        switch (text.ToLower())
        {
            case "house":
                textObject.text = "house text1";
                break;
            case "house2":
                textObject.text = "house text2";
                break;
            default:
                textObject.text = "Click on the building";
                break;
        }

    }
    else
    {
        TipImage.enabled = false;
        textObject.text = "";
    }
    TipImage.enabled = true;
}

private void OnMouseOver()
{
    displayInfo = true;
}

private void OnMouseExit()
{
    displayInfo = false;
}

}