//teacher have student.
/*
you can use "exec:command()" or "=value" to apply commands
or numeric values to your default value
students have age:int, sex:boolean, color:varchar(7).
*/
students have name:varchar(80, required, "=jon(son of bob)", key).

/* this is another
test again */

teacher     have   nome:varchar(40, not null, "maria(son of jose) da silva", key).

and we know that each teacher may have one or many stuends.
