Example
<b> Introduction to DB </b>
<i> Phil Bernstein </i>
<i> Eric Newcomer </i>
Addison Wesley,
1999
<book>
<title>
Introduction to DB </title>
<author>
Phil Bernstein </author>
<author>
Eric Newcomer </author>
<publisher>
Addison Wesley </publisher>
<year>
1999 </year>
</book>
Transform:
into: