Tweets that were posted from Brazil are in what languague?
"Brazil" is the Country; language refers to Lang
SELECT DISTINCT T1.Lang FROM twitter AS T1 INNER JOIN location AS T2 ON T1.LocationID = T2.LocationID WHERE T2.Country = 'Brazil'
CREATE TABLE location
(
    LocationID INTEGER
        constraint location_pk
            primary key,
    Country    TEXT,
    State      TEXT,
    StateCode  TEXT,
    City       TEXT
);
CREATE TABLE user
(
    UserID TEXT
        constraint user_pk
            primary key,
    Gender TEXT
);
CREATE TABLE twitter
(
    TweetID         TEXT
            primary key,
    Weekday         TEXT,
    Hour         INTEGER,
    Day          INTEGER,
    Lang         TEXT,
    IsReshare    TEXT,
    Reach        INTEGER,
    RetweetCount INTEGER,
    Likes        INTEGER,
    Klout        INTEGER,
    Sentiment    REAL,
    "text"         TEXT,
    LocationID   INTEGER,
    UserID       TEXT,
    foreign key (LocationID) references location(LocationID),
    foreign key (UserID) references user(UserID)
);
