(nm +CuSu @Sup (sup +Item) (itm +Pos)
ord)</code>, where the supplier name is searched in the <code>nm</code> tree of
<code>+CuSu</code>, then the <code><a href="refR.html#+Ref">+Ref</a></code> tree
<code>(sup +Item)</code> tree is followed to locate items of that supplier, then
all positions for those items are found using <code>(itm +Pos)</code>, and
finally the <code>ord</code> <code><a href="refJ.html#+Joint">+Joint</a></code>
is followed to arrive at the order object(s).


<p><hr>
<h3><a id="nested">Ne