List the number of games that ended up with 5-0 in Greece.
5-0 is a score where FTHG = '5' and FTAG = '0'; Greece is a name of country; games refer to Div;
SELECT COUNT(T1.Div) FROM matchs AS T1 INNER JOIN divisions AS T2 ON T1.Div = T2.division WHERE T2.country = 'Greece' AND T1.FTHG = 5 AND T1.FTAG = 0
CREATE TABLE divisions
(
    division TEXT not null
        primary key,
    name     TEXT,
    country  TEXT
);
CREATE TABLE matchs
(
    Div      TEXT,
    Date     DATE,
    HomeTeam TEXT,
    AwayTeam TEXT,
    FTHG     INTEGER,
    FTAG     INTEGER,
    FTR      TEXT,
    season   INTEGER,
    foreign key (Div) references divisions(division)
);
