mx01.example.nil. 3600 IN MX 10 mail.example.nil.
mx02.example.nil. 3600 IN MX 10 .
naptr01.example.nil. 3600 IN NAPTR 0 0 "" "" "" .
-naptr02.example.nil. 3600 IN NAPTR 65535 65535 "blurgh" "blorf" "blegh" foo.
+naptr02.example.nil. 3600 IN NAPTR 65535 65535 "blurgh" "blorf" "blllbb" foo.
ns1.example.nil. 300 IN A 10.53.0.1
ns2.example.nil. 300 IN A 10.53.0.2
nsap-ptr01.example.nil. 3600 IN NSAP-PTR .