Question: Who published the title in the Pet-raising simulator genre?
SQL: SELECT "Publisher" FROM "1-21458142-1" WHERE "Genre" = 'Pet-raising simulator';

Question: What's the sales breakdown for Nintendo's Mario Kart DS?
SQL: SELECT "Sales breakdown" FROM "1-21458142-1" WHERE "Publisher" = 'Nintendo' AND "Title" = 'Mario Kart DS';

Question: How many copies were sold of the game released on October 23, 2008?
SQL: SELECT "Total copies sold" FROM "1-21458142-1" WHERE "Release date" = 'October 23, 2008';

Question: What's the sales breakdown of the Nintendo game released on May 15, 2006?
SQL: SELECT "Sales breakdown" FROM "1-21458142-1" WHERE "Publisher" = 'Nintendo' AND "Release date" = 'May 15, 2006';