CREATE TABLE table_47446 ("Series Sorted" TEXT, "Title" TEXT, "Doctor" TEXT, "Featuring" TEXT, "Released" TEXT)

who is the featuring when the series sorted is 6eb/b?
SELECT "Featuring" FROM table_47446 WHERE "Series Sorted" = '6eb/b'
SELECT "Featuring" FROM "table_47446" WHERE "Series Sorted" = '6eb/b'