QML property alias not working

import QtQuick 1.0

Item {
    width: 800
    height: 600
    Bar {
        theText.myValue: "foo"
    }
}

import QtQuick 1.0

Item {
    property alias theText: myText
    Baz {
        id: myText
        myValue: "bar"
    }
}

import QtQuick 1.0

Item {
    property string myValue: "baz"
    Text {
        text: myValue
        font.pointSize: 36
    }
}