CREATE TABLE "list" ( 
	"LastName" TEXT, 
	"FirstName" TEXT, 
	"Grade" INTEGER, 
	"Classroom" INTEGER,
	PRIMARY KEY(LastName, FirstName)
)

CREATE TABLE "teachers" ( 
	"LastName" TEXT, 
	"FirstName" TEXT, 
	"Classroom" INTEGER,
	PRIMARY KEY(LastName, FirstName)
)
SELECT count(*) FROM list
How many students are there?