enum FieldType :
  INTEGER | FLOAT | TEXT | BLOB | NULLT
;
Table:
   'Table' name = ID 
   '{'
       (field += Field | references += Reference)+
   '}'
;

Field:
	name=ID type = FieldType
;

Reference:
	"Reference" refered = [Table]
	('{'
		field = [Field]
	 '}')?
;

	Table userLevel
	{
		name TEXT
		ranking INTEGER
	}
	Table user
	{
		name TEXT 
		fullName TEXT
                Reference userLevel
                {
                 	/*here are selectable name and fullName from user, I need name and ranking from userLevel */
                }
	}