user: Question: What is the the name of the winner or 2nd  with a weight more than 7.3, and the result was –?
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 "Weight" > 7.3 AND "Result" = '–';