I just want to 'cut' the <author> part and place it inside the <some> tag.

cut this part:

<author>
<name><snm>surname</snm><fnm>firstname</fnm></name>
</author>

Paste here:

<some>
<author>
<name><snm>surname</snm><fnm>firstname</fnm></name>
</author>
</some>
[download]

How to achieve this?