CREATE TABLE table_1499791_2 (yankton_yanktonai VARCHAR, southern_lakota VARCHAR)

Name the yankton yanktonai for wi h a
SELECT yankton_yanktonai FROM table_1499791_2 WHERE southern_lakota = "wičháša"
SELECT "yankton_yanktonai" FROM "table_1499791_2" WHERE "southern_lakota" = "wičháša"