CREATE TABLE table_50433 ("Name" CLOB, "Latitude" CLOB, "Longitude" CLOB, "Diameter" FLOAT, "Year named" FLOAT)

What is dardanus sulcus' lowest diameter?
SELECT MIN("Diameter") FROM table_50433 WHERE "Name" = 'dardanus sulcus'
SELECT MIN("Diameter") FROM "table_50433" WHERE "Name" = 'dardanus sulcus'