CREATE TABLE table_31420 ("Official name" CLOB, "INE code" FLOAT, "Name in Spanish" CLOB, "Name in Basque" CLOB, "Population  ( 2007 ) " FLOAT)

What is the name in Basque of the municipality whose official name is Kuartango?
SELECT "Name in Basque" FROM table_31420 WHERE "Official name" = 'Kuartango'
SELECT "Name in Basque" FROM "table_31420" WHERE "Official name" = 'Kuartango'