or download this
create table nodes (
node_id integer not null primary key,
...
insert into nodes (node_id, message,location) values (4,'Re: Re: Hello
+ (1)','AA');
insert into nodes (node_id, message,location) values (5,'Re: Re: Hello
+ (2)','AB');
insert into nodes (node_id, message,location) values (6,'Re: Re: Hello
+!','BA');