private function htmlAncestorDispersionG2()
    {
        $ancestorsDispGen2 = $this->sosa_provider->getAncestorDispersionForGen(2);
        if(count($ancestorsDispGen2) == 0) return;
        
        $size = '600x300';
        
        $total = array_sum($ancestorsDispGen2);
        $father_count = array_key_exists(1, $ancestorsDispGen2) ? $ancestorsDispGen2[1] : 0;
        $father = array (
            'color' => '84beff', 
            'count' => $father_count, 
            'perc' => Functions::safeDivision($father_count, $total), 
            'name' => \Fisharebest\Webtrees\Functions\Functions::getRelationshipNameFromPath('fat')            
        );
        $mother_count = array_key_exists(2, $ancestorsDispGen2) ? $ancestorsDispGen2[2] : 0;
        $mother = array (
            'color' => 'ffd1dc', 
            'count' => $mother_count, 
            'perc' => Functions::safeDivision($mother_count, $total),
            'name' => \Fisharebest\Webtrees\Functions\Functions::getRelationshipNameFromPath('mot')
        );
        $shared_count = array_key_exists(-1, $ancestorsDispGen2) ? $ancestorsDispGen2[-1] : 0;
        $shared = array (
            'color' => '777777', 
            'count' => $shared_count, 
            'perc' => Functions::safeDivision($shared_count, $total),
            'name' => I18N::translate('Shared')
        );
        
        $chd = $this->arrayToExtendedEncoding(array(4095 * $father['perc'], 4095 * $shared['perc'], 4095 * $mother['perc']));
        $chart_title = I18N::translate('Known Sosa ancestors\' dispersion');
        $chl = 
             $father['name'] . ' - ' . I18N::percentage($father['perc'], 1) . '|' .
             $shared['name'] . ' - ' . I18N::percentage($shared['perc'], 1) . '|' .
             $mother['name'] . ' - ' . I18N::percentage($mother['perc'], 1);
        return "<img src=\"https://chart.googleapis.com/chart?cht=p&chp=1.5708&amp;chd=e:{$chd}&amp;chs={$size}&amp;chco={$father['color']},{$shared['color']},{$mother['color']}&amp;chf=bg,s,ffffff00&amp;chl={$chl}\" alt=\"" . $chart_title . "\" title=\"" . $chart_title . "\" />";
    }