CREATE TABLE table_23978 ("Model Type" CLOB, "Model Designation" CLOB, "Engine" CLOB, "Wheelbase  ( mm/inch ) " CLOB, "GVW  ( kg/ton ) " CLOB, "Axle Ratio" CLOB)

What's the model designation of the model with GVW of 2828/2.78 kg/ton and axle ratio of 9/47?
SELECT "Model Designation" FROM table_23978 WHERE "GVW (kg/ton)" = '2828/2.78' AND "Axle Ratio" = '9/47'
SELECT "Model Designation" FROM "table_23978" WHERE "Axle Ratio" = '9/47' AND "GVW (kg/ton)" = '2828/2.78'