user: Question: What is the lowest rank that has university park, pa as the location?
Columns: ['Rank', 'Stadium', 'Capacity', 'Location', 'Home Team']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Michigan Stadium', '109,901 [ unreliable source? ]', 'Ann Arbor , MI', 'Michigan Wolverines']
SQL:

assistant: SELECT MIN("Rank") FROM "Table" WHERE "Location" = 'university park, pa';