CREATE TABLE table_11492 ("Player" TEXT, "Nationality" TEXT, "Position" TEXT, "Years for Jazz" TEXT, "School/Club Team" TEXT)

What nationality is mark eaton, center position?
SELECT "Nationality" FROM table_11492 WHERE "Position" = 'center' AND "Player" = 'mark eaton'
SELECT "Nationality" FROM "table_11492" WHERE "Player" = 'mark eaton' AND "Position" = 'center'