CREATE TABLE table_26064 ("Place came" TEXT, "Artist" TEXT, "Category" TEXT, "Act" TEXT, "Semi-final" TEXT, "Result" TEXT)

During the act, Playing on Glasses, what was the semi-final?
SELECT "Semi-final" FROM table_26064 WHERE "Act" = 'Playing on Glasses'
SELECT "Semi-final" FROM "table_26064" WHERE "Act" = 'Playing on Glasses'