INSTANCE derived_attribute#1; formula = ?z; END_INSTANCE;
INSTANCE derived_attribute#2; name = "average_mark"; tipe = simple_type(real_type); formula = binary_operation#23; the_entity = entity_type#46; (* set indirectly *) END_INSTANCE;
INSTANCE derived_attribute#3; name = "total_mark"; tipe = simple_type(real_type); formula = binary_operation#27; the_entity = entity_type#50; (* set indirectly *) END_INSTANCE;