Benefit of UriKind.Relative and UriKind.Absolute

Question

While experimenting on Webbrowser control in Windows phone app development I found there is one property called UriKind, I tried with all 3 and checked output, i.e 1) UriKind.Relative 2) UriKind.Absolute & 3) UriKind.RelativeorAbsolute
But I not found single change in the Output, Can anyone help me what is the benefit or what we can get by these 3 different UriKind properties of Webbrowser Control in Windows Phone app Development in Xaml C#.