CREATE TABLE countries(
  "countryid" INTEGER PRIMARY KEY AUTOINCREMENT,
  "country" TEXT,
  "mainlangid" INTEGER
);
CREATE TABLE langues(
  "langid"  INTEGER PRIMARY KEY AUTOINCREMENT,
  "langue" TEXT
);
CREATE TABLE speaks (
  "countryid"  INTEGER NOT NULL,
  "langid" INTEGER NOT NULL,
  PRIMARY KEY ("countryid", "langid")
);
