city.kasama.ibaraki.jp	IN	NS	ns016-12qqn9e67nqjv5up.1.d-53.info.
city.kasama.ibaraki.jp	IN	NS	ns016-12qqn9e67nqjv5up.1.d-53.jp.
city.kasama.ibaraki.jp	IN	NS	ns016-12qqn9e67nqjv5up.1.d-53.net.