Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_50574 ( "Place" text, "Downhill" real, "Competitor" text, "1st run" text, "2nd run" text, "Points" text )

### Question ###
Who is the competitor with a downhill of more than 55, and 1st DQ run?

### Accurate SQL ###

SELECT "Competitor" FROM table_50574 WHERE "Downhill" > '55' AND "1st run" = 'dq'