CREATE TABLE table_12775 ("Name" TEXT, "Location" TEXT, "Land" TEXT, "Longest span in s metre  (  feet  ) " TEXT, "Arch type" TEXT, "Completed" TEXT)

How long is the bridge in Villeneuve-sur-Lot?
SELECT "Longest span in s metre ( feet )" FROM table_12775 WHERE "Location" = 'villeneuve-sur-lot'
SELECT "Longest span in s metre ( feet )" FROM "table_12775" WHERE "Location" = 'villeneuve-sur-lot'