Populating a context

I've search the forum, but haven't found anything to address this issue.

I have a context of

NodeA
  |-- NodeB
  |   |-- ValueA
  |   |-- ValueB
  |   |-- ValueC
  |--ValueD
  |--ValueE

I have 1-N of NodeA with it containing 1-N NodeB.

I'm trying to prepopulate the context on startup but can't get NodeB inserted into NodeA. I.e. my code looks like this

wdContext.nodeNodeA().invalidate();
for (int k = 0; k < some_info.length; k++) {
    INodeAElement nodeA = wdContext.createNodeAElement();
    nodeA.setValueD((String) some_info[k][0]);
    nodeA.setValueE((String) some_info[k][1]);

    String[][] outStrs = (String[][]) some_info[k][2];
    INodeBElement nodeB = wdContext.createNodeBElement();
    for (int j = 0; j < outStrs.length; j++) {
	nodeB.setValueA(outStrs[j][0]);
	nodeB.setValueB(outStrs[j][1]);
	nodeB.setValueC(outStrs[j][2]);
    }
   wdContext.nodeNodeA().addElement(nodeA);
}

How do I get the 1-N nodes of NodeB associated with NodeA?

Any help is appreciated.

Lori