What is the country of origin of the artist who is female and produced a song in Bangla?
SELECT T1.country FROM artist AS T1 JOIN song AS T2 ON T1.artist_name  =  T2.artist_name WHERE T1.gender  =  "Female" AND T2.languages  =  "bangla"
country of origin of the artist refers to T1.country; artist who is female refers to T1.gender = 'Female'; produced a song in Bangla refers to T2.languages = 'bangla';