Model:
	greetings+=(Greeting| Test)*;
	
Greeting:
	'Hello' sample=[Test] 'age' age=INT '!';
Test:
	'Bye' sName=ID '!' 'see' 'you' date=ID';'
;

class Model {
	contains EObject[] greetings
}

class Greeting {
	refers Test sample opposite greet
	int age
}

class Test {
        refers Greeting greet opposite sample
	String sName
	String date
}