user: Question: Which Competition has a Venue of Estadio Alfonso Lastras, San Luis Potosí, Mexico, and a Goal larger than 15?
Columns: ['Goal', 'Date', 'Venue', 'Score', 'Result', 'Competition']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'October 27, 2004', 'Giants Stadium , East Rutherford , United States', '1–0', '2–1', 'Friendly']
SQL:

assistant: SELECT "Competition" FROM "Table" WHERE "Venue" = 'Estadio Alfonso Lastras, San Luis Potosí, Mexico' AND "Goal" > 15.0;