{return NodeSet.EMPTY_SET;}
// TODO: optimize and return false if rl.isEmpty() ?
NodeSet rr = rs.toNodeSet();
rr = rr.getContextNodes(right.getContextId());
result = rr.intersection(rl);
//<test>{() and ()}</test> has to return <test>false</test>
if (getParent() instanceof EnclosedExpr ||
//First, the intermediate PathExpr
(getParent() != null && getParent().getParent() == null)) {
result = result.isEmpty() ? BooleanValue.FALSE : BooleanValue.TRUE;