CREATE TABLE table_name_1 (time_retired VARCHAR(255), constructor VARCHAR(255), grid VARCHAR(255), laps VARCHAR(255))
What is the Time/Retired that has a Grid smaller than 8, 73 laps, and a Constructor of williams - bmw?
    
SQL: SELECT time_retired FROM table_name_1 WHERE grid < 8 AND laps = 73 AND constructor = "williams - bmw"