CREATE TABLE table_57158 ("Rank" FLOAT, "Name" CLOB, "Nation" CLOB, "Points" FLOAT, "Placings" FLOAT)

Tell me the lowest placings for United Kingdom and rank less than 13
SELECT MIN("Placings") FROM table_57158 WHERE "Nation" = 'united kingdom' AND "Rank" < '13'
SELECT MIN("Placings") FROM "table_57158" WHERE "Nation" = 'united kingdom' AND "Rank" < '13'