class A{
	fun void greet(){
		<<<"hello">>>;
	}
}

// works when defined here
//class kidA extends A {}

class B{
	fun void greet(){
	}
}

class kidB extends B{
	3 => int nb_kids;
	kidA kids[nb_kids];

	fun void greet(){
		for(0 => int i; i<kids.cap(); i++){
			kids[i].greet();
		}
	}
}

// doesn't work when defined here
class kidA extends A {}

/*
A a;
a.greet();

kidA kid_a;
kid_a.greet();
*/

kidB kid_b;
kid_b.greet();