Question: What was the statue in St. Paul, Minnesota constructed before 1966 made out of?
SQL: SELECT "Material" FROM "2-16221280-1" WHERE "Completed" < 1966.0 AND "Location" = 'St. Paul, Minnesota';

Question: When was the most recent statue that was made out of solid granite completed?
SQL: SELECT MAX("Completed") FROM "2-16221280-1" WHERE "Material" = 'solid granite';