A system, method and computer program product for displaying a conversation summary is provided. This structure made up the following layers: NiCrMnPtCoFeRuCoFeCufree layerCuTa or TaOAl2O3. The containment structure may include one or more hoppers, each of which may have inflow and outflow ports, by which means lading may be introduced into the car, or discharged from it. A movable detent part is provided and comprises at least one detent projection that: cooperates with the detent bight, is normally not engaged with the detent bight, and when the seat back is tilted forward about the forward tilt axis, is at least ready for engagement with the detent bight or engaged therewith.