The XML is
<address>
<line>123 any street</line>
<city>SF</city> <state>CA</state> <country>US</country>
</address>
<address>
<line>456 other lane</line><line>flat 3</line>
<city>London</city> <state></state> <country>GB</country>
</address>
<address>
<line>14 gordon st</line><line>#204</line>
<city>Brighton</city> <state>MA</state> <country>US</country>
</address>
<address>
<line>37 foo lane</line>
<city>Ixtapa</city> <state>MX</state> <country>MX</country>
</address>
<address>
<line>44 sheep st</line><line>#1</line>
<city>Liverpool</city> <state></state> <country>GB</country>
</address>
<address>
<line>74 nice st</line><line>#1801</line>
<city>Chicago</city> <state>IL</state> <country>US</country>
</address>
The count for US nodes is 3