rewrite ^/([0-9]+)-([0-9]+).html$      /app/index.php?i=$1&a=webapp&c=entry&eid=$2;

rewrite ^/([0-9]+)/$         /app/index.php?i=$1&a=webapp&c=entry&do=index&m=fy_lessonv2;

rewrite ^/([0-9]+)/([0-9a-zA-Z]+).html$     /app/index.php?i=$1&a=webapp&c=entry&do=$2&m=fy_lessonv2;