CREATE TABLE table_26174 ("Warship" TEXT, "tons  (  L.ton  ) " FLOAT, "Horse- power" FLOAT, "Speed  (  Knots  ) " TEXT, "Armour  ( Inch ) " TEXT, "Main Artillery" TEXT, "Built Year" FLOAT)

How much does the Independencia weight?
SELECT MIN("tons ( L.ton )") FROM table_26174 WHERE "Warship" = 'Independencia'
SELECT MIN("tons ( L.ton )") FROM "table_26174" WHERE "Warship" = 'Independencia'