CREATE TABLE table_68397 ("Year" FLOAT, "Entrant" CLOB, "Chassis" CLOB, "Engine" CLOB, "Points" FLOAT)

Which Entrant of stp march engineering scored the lowest points?
SELECT MIN("Points") FROM table_68397 WHERE "Entrant" = 'stp march engineering'
SELECT MIN("Points") FROM "table_68397" WHERE "Entrant" = 'stp march engineering'