user: Question: What was the name of the winner or 2nd when the result was –, and weight was 6.7?
Columns: ['Result', 'Race', 'Distance', 'Weight', 'Winner or 2nd', "Pos'n"]
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['–', 'RRC Nursery Hcp', '5 ½ f', 6.11, 'Exact', '1st']
SQL:

assistant: SELECT "Winner or 2nd" FROM "Table" WHERE "Result" = '–' AND "Weight" = 6.7;