Question: The album titled i had what chart positions?
SQL: SELECT "Chart positions" FROM "2-15593730-1" WHERE "Album title" = 'i';

Question: What is the title of the album that has PoPuP has the original label?
SQL: SELECT "Album title" FROM "2-15593730-1" WHERE "Original label" = 'PoPuP';

Question: What is the format of the album with a year less than 1992?
SQL: SELECT "Format" FROM "2-15593730-1" WHERE "Year" < 1992.0;

Question: What chart positions did the album reach when EP was the format?
SQL: SELECT "Chart positions" FROM "2-15593730-1" WHERE "Format" = 'EP';