Table schema:
CREATE TABLE song (artist_name VARCHAR, languages VARCHAR); CREATE TABLE artist (artist_name VARCHAR); CREATE TABLE artist (artist_name VARCHAR, country VARCHAR)

Question: Return the names of singers who are from UK and released an English song.
SQL: SELECT artist_name FROM artist WHERE country = "UK" INTERSECT SELECT T1.artist_name FROM artist AS T1 JOIN song AS T2 ON T1.artist_name = T2.artist_name WHERE T2.languages = "english"