Translate the following question to SQL: Show the countries that have managers of age above 50 or below 46.

Schema: CREATE TABLE railway (
    Railway_ID INT   PRIMARY KEY,
    Railway TEXT,
    Builder TEXT,
    Built TEXT,
    Wheels TEXT,
    Location TEXT,
    ObjectNumber TEXT,
    UNIQUE (Railway_ID)
);

CREATE TABLE train (
    Train_ID INT   PRIMARY KEY,
    Train_Num TEXT,
    Name TEXT,
    From TEXT,
    Arrival TEXT,
    Railway_ID INT,
    UNIQUE (Train_ID),
    FOREIGN KEY (Railway_ID) REFERENCES railway(Railway_ID)
);

CREATE TABLE manager (
    Manager_ID INT   PRIMARY KEY,
    Name TEXT,
    Country TEXT,
    Working_year_starts TEXT,
    Age INT,
    Level INT,
    UNIQUE (Manager_ID)
);

CREATE TABLE railway_manage (
    Railway_ID INT   PRIMARY KEY,
    Manager_ID INT   PRIMARY KEY,
    From_Year TEXT,
    PRIMARY KEY (Railway_ID, Manager_ID),
    UNIQUE (Railway_ID, Manager_ID),
    FOREIGN KEY (Railway_ID) REFERENCES railway(Railway_ID),
    FOREIGN KEY (Manager_ID) REFERENCES manager(Manager_ID)
);
user
SELECT Country FROM manager WHERE Age  >  50 OR Age  <  46
assistant