user: Question: What is the lowest capacity for 1903?
Columns: ['Rank', 'Capacity', 'City', 'State', 'Year opened']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['1', 109901.0, 'Ann Arbor', 'Michigan', '1927']
SQL:

assistant: SELECT MIN("Capacity") FROM "Table" WHERE "Year opened" = '1903';