CREATE TABLE table_50574 ("Place" TEXT, "Downhill" FLOAT, "Competitor" TEXT, "1st run" TEXT, "2nd run" TEXT, "Points" TEXT)

Who is the competitor with a downhill of more than 55, and 1st DQ run?
SELECT "Competitor" FROM table_50574 WHERE "Downhill" > '55' AND "1st run" = 'dq'
SELECT "Competitor" FROM "table_50574" WHERE "1st run" = 'dq' AND "Downhill" > '55'