An information processing apparatus comprises a key and a proximity sensor. The custom strategy specifies services to perform, and possibly an order in which to perform the services, by a service provider in relation to an electronic transaction associated with the merchant. The flat bottom is torn open in order to release the substance, with the chamber wall being preferably turned upside down through the bottom. Furthermore some specific bidentate diphosphines used in this process are described. Such pipe sections may be lightweight and flexible while exhibiting improved strength characteristics.