Modifying Tag Display In Single Post Pages: Adding Custom URL Property

Let’s say I have assigned multiple tags to a WordPress post. Some posts may have 3 tags, some may have 6.

I am trying to show this code in my single post pages:

<span typeof="v:Breadcrumb"><a href="tag 1 url" rel="v:url">tag 1 name</a></span> >
<span typeof="v:Breadcrumb"><a href="tag 2 url" rel="v:url">tag 2 name</a></span> >
<span typeof="v:Breadcrumb"><a href="tag 3 url" rel="v:url">tag 3 name</a></span> >

How do we do that?

Help is appreciated