public static function sortableNames(Individual $individual) {
        $names   = $individual->getAllNames();
        $primary = $individual->getPrimaryName();

        list($surn, $givn) = explode(',', $names[$primary]['sort']);

        $givn = str_replace('@P.N.', 'AAAA', $givn);
        $surn = str_replace('@N.N.', 'AAAA', $surn);

        return array(
            $surn . 'AAAA' . $givn,
            $givn . 'AAAA' . $surn,
        );
    }