CREATE TABLE table_name_91 (winner_or_2nd VARCHAR, result VARCHAR, weight VARCHAR)

What was the name of the winner or 2nd when the result was , and weight was 6.7?
SELECT winner_or_2nd FROM table_name_91 WHERE result = "–" AND weight = 6.7
SELECT "winner_or_2nd" FROM "table_name_91" WHERE "result" = "–" AND "weight" = 6.7