Do namespaces help with interchange?

xmlns:hp='http://www.gov.ng/hp.x'>

<hp:thone>UDLINGBLON</hp:thone>

<hp:kallow> 29</hp:kallow>

<hp:spec>GUINEA FOWL</hp:spec>

<hp:date> 2000 3 9</hp:date>

</hp:hperm>

(Vocabulary in the HP namespace:

hperm, thone, kallow, spec, date)