CREATE TABLE table_71952 ("Date" CLOB, "Visiting team" CLOB, "Home team" CLOB, "Stadium" CLOB, "Regular season / Preseason" CLOB)

In what stadium was the home team Dallas Cowboys 21?
SELECT "Stadium" FROM table_71952 WHERE "Home team" = 'dallas cowboys 21'
SELECT "Stadium" FROM "table_71952" WHERE "Home team" = 'dallas cowboys 21'