how to use not attribute elements

[satiling]

xml content as bellow:
<list name="refNrCellGroup"> <p>1</p> <p>2</p> <p>3</p> <p>4</p> <p>5</p> <p>6</p> </list>

How do I write the updated path xml? The p element has no attributes, how do I find their location?