Tell me the publisher of the book Bloody Mary : Lady Liberty.
select t2.publisher from book as t1 join publication as t2 on t1.book_id = t2.book_id where t1.title = "Bloody mary : lady Liberty"
How many publications does this publisher have?
select count(*) from publication where publisher = (select t2.publisher from book as t1 join publication as t2 on t1.book_id = t2.book_id where t1.title = "Bloody mary : lady Liberty")
Tell me the publishers that have more than one publication.
select publisher from publication group by publisher having count(*) > 1