A method for reconditioning an articulated connector while it is still mounted to the end structure of a rail car is disclosed. The method includes determining priorities of the plurality of data based on information on the plurality of data, and driving a plurality of protocol modules, which process the plurality of data according to a predetermined protocol, based on the priorities determined in. For the other of the photons in the photon pair, at least two interactions in a second 3-D detector are detected. A multiplexer circuit is electrically coupled to the voltage divider. Search results correspond to a subset of the items to which the query items are semantically-related.