user: Question: What is the highest Top-5 that has 18 or more events with a Top-25 of 23?
Columns: ['Tournament', 'Wins', 'Top-5', 'Top-10', 'Top-25', 'Events', 'Cuts made']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Masters Tournament', 1.0, 2.0, 3.0, 11.0, 30.0, 17.0]
SQL:

assistant: SELECT MAX("Top-5") FROM "Table" WHERE "Events" > 18.0 AND "Top-25" = 23.0;