Dustin Waybright thinks this is interesting:

SELECT S.companyname AS supplier, S.country, P.productid, P.productname, P.unitprice, C.categoryname FROM Production.Suppliers AS S LEFT OUTER JOIN (Production.Products AS P INNER JOIN Production.Categories AS C ON C.categoryid = P.categoryid) ON S.supplierid = P.supplierid WHERE S.country = N'Japan';