### Database Schema
CREATE TABLE "circuits" (
"circuitId" INTEGER PRIMARY KEY,
  "circuitRef" TEXT,
  "name" TEXT,
  "location" TEXT,
  "country" TEXT,
  "lat" REAL,
  "lng" REAL,
  "alt" TEXT,
  "url" TEXT
)

CREATE TABLE "races" (
"raceId" INTEGER PRIMARY KEY,
  "year" INTEGER,
  "round" INTEGER,
  "circuitId" INTEGER,
  "name" TEXT,
  "date" TEXT,
  "time" TEXT,
  "url" TEXT,
  FOREIGN KEY ("circuitId") REFERENCES "circuits"("circuitId")
)

CREATE TABLE "drivers" (
"driverId" INTEGER PRIMARY KEY,
  "driverRef" TEXT,
  "number" TEXT,
  "code" TEXT,
  "forename" TEXT,
  "surname" TEXT,
  "dob" TEXT,
  "nationality" TEXT,
  "url" TEXT
)

CREATE TABLE "status" (
"statusId" INTEGER PRIMARY KEY,
  "status" TEXT
)

CREATE TABLE "seasons" (
"year" INTEGER PRIMARY KEY,
  "url" TEXT
)

CREATE TABLE "constructors" (
	"constructorId" INTEGER PRIMARY KEY,
  "constructorRef" TEXT,
  "name" TEXT,
  "nationality" TEXT,
  "url" TEXT
)

CREATE TABLE "constructorStandings" (
	"constructorStandingsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "constructorId" INTEGER,
  "points" REAL,
  "position" INTEGER,
  "positionText" TEXT,
  "wins" INTEGER,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId")
)

CREATE TABLE "results" (
"resultId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "constructorId" INTEGER,
  "number" INTEGER,
  "grid" INTEGER,
  "position" TEXT,
  "positionText" TEXT,
  "positionOrder" INTEGER,
  "points" REAL,
  "laps" TEXT,
  "time" TEXT,
  "milliseconds" TEXT,
  "fastestLap" TEXT,
  "rank" TEXT,
  "fastestLapTime" TEXT,
  "fastestLapSpeed" TEXT,
  "statusId" INTEGER,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "driverStandings" (
"driverStandingsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "points" REAL,
  "position" INTEGER,
  "positionText" TEXT,
  "wins" INTEGER,
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "constructorResults" (
"constructorResultsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "constructorId" INTEGER,
  "points" REAL,
  "status" TEXT,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId")
)

CREATE TABLE "qualifying" (
"qualifyId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "constructorId" INTEGER,
  "number" INTEGER,
  "position" INTEGER,
  "q1" TEXT,
  "q2" TEXT,
  "q3" TEXT,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "pitStops" (
"raceId" INTEGER,
  "driverId" INTEGER,
  "stop" INTEGER,
  "lap" INTEGER,
  "time" TEXT,
  "duration" TEXT,
  "milliseconds" INTEGER,
  PRIMARY KEY ("raceId", "driverId", "stop"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "lapTimes" (
"raceId" INTEGER,
  "driverId" INTEGER,
  "lap" INTEGER,
  "position" INTEGER,
  "time" TEXT,
  "milliseconds" INTEGER,
  PRIMARY KEY("raceId", "driverId", "lap"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

### Question
For each nationality, how many different constructors are there?

### SQL
SELECT count(*) ,  nationality FROM constructors GROUP BY nationality