CREATE TABLE table_61614 ("Opposing Teams" TEXT, "Against" FLOAT, "Date" TEXT, "Venue" TEXT, "Status" TEXT)

What is the lowest against team in the Six Nations status in Lansdowne Road, Dublin?
SELECT MIN("Against") FROM table_61614 WHERE "Status" = 'six nations' AND "Venue" = 'lansdowne road, dublin'
SELECT MIN("Against") FROM "table_61614" WHERE "Status" = 'six nations' AND "Venue" = 'lansdowne road, dublin'