CREATE TABLE table_57199 ("Date" TEXT, "Course" TEXT, "Distance" TEXT, "Type" TEXT, "Winner" TEXT)

What is the name of the winner with a type of plain stage and a Course of nola to sora?
SELECT "Winner" FROM table_57199 WHERE "Type" = 'plain stage' AND "Course" = 'nola to sora'
SELECT "Winner" FROM "table_57199" WHERE "Course" = 'nola to sora' AND "Type" = 'plain stage'