AT&T has an ampersand in their name.

AT&T is another way to write it.

This & that.

4 < 5.

6 > 5.

Here's a link with an ampersand in the URL.

Here's a link with an amersand in the link text: AT&T.

Here's an inline link.

Here's an inline link.

But this <<is>>.

As is << this>>/.