The publishers table contains the publisher ID, and name, city, and state.
publishers is defined as:
create table publishers (pub_id char(4) not null, pub_name varchar(40) not null, city varchar(20) null, state char(2) null, unique nonclustered (pub_id))
Its pub_idrule rule is defined as:
create rule pub_idrule
as @pub_id in
("1389", "0736", "0877", "1622", "1756")
or @pub_id like "99[0-9][0-9]"