class PSCore_subclass
{
    [key] string id;
    string subfield1;
    sint32 subfield2;
};

instance of PSCore_subclass 
{
    id = "s1";
    subfield1 = "sub thing";
    subfield2 = 100;
};

[HasClassRefs, Association]
class PSCore_Association
{
    [key, classref{ "PSCore_Test1", "PSCore_Test2" }]
    object ref ep1;
    [key] object ref ep2;
};

class PSCore_Test2
{
    [key] string id;
    string field1;
    sint32 field2;
};

class PSCore_Test1 
{
    [key] string id;
    string field1;
    sint32 field2;
    datetime datetime;
    PSCore_subclass subclass;
};

instance of PSCore_Test1
{
    id = "1";
    field1 = "instance 1";
    field2 = -1;
    datetime = "20080101000000.000000<UTCOffSet>";
    subclass = instance of PSCore_subclass{Id="10";subfield1="yup";subfield2=200;};
};

instance of PSCore_Test1
{
    id = "2";
    field1 = "instance 2";
    field2 = -2;
};

instance of PSCore_Test1
{
    id = "3";
    field1 = "instance 3";
    field2 = -3;
};
instance of PSCore_Test1
{
    id = "4";
    field1 = "instance 4";
    field2 = -4;
};