CREATE TABLE table_name_71 (location VARCHAR, host VARCHAR, national_champion VARCHAR)

At what Location did Robert Morris University (Illinois) Host the Lindenwood National Chamption?
SELECT location FROM table_name_71 WHERE host = "robert morris university (illinois)" AND national_champion = "lindenwood"
SELECT "location" FROM "table_name_71" WHERE "host" = "robert morris university (illinois)" AND "lindenwood" = "national_champion"