Table schema:
CREATE TABLE country (Code VARCHAR); CREATE TABLE countrylanguage (CountryCode VARCHAR, Language VARCHAR)

Question: Which countries have either English or Dutch as an official language?
SQL: SELECT * FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code = T2.CountryCode WHERE T2.Language = "English" AND IsOfficial = "T" UNION SELECT * FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code = T2.CountryCode WHERE T2.Language = "Dutch" AND IsOfficial = "T"