CREATE TABLE table_39624 ("Name" TEXT, "Livery" TEXT, "Arrival" FLOAT, "Type" TEXT, "Configuration" TEXT, "Builder" TEXT, "Built" FLOAT, "Status" TEXT, "Location" TEXT)

for type diesel-mechanical and configuration b-b, what is the status?
SELECT "Status" FROM table_39624 WHERE "Configuration" = 'b-b' AND "Type" = 'diesel-mechanical'
SELECT "Status" FROM "table_39624" WHERE "Configuration" = 'b-b' AND "Type" = 'diesel-mechanical'