Book information describing a plurality of books is analyzed to identify the plurality of books described in the book information and create book records for the respective ones of identified books. It comprises a flex cable which in part has a first end for coupling to the connector, and a second end for coupling to the head stack assembly; and a stiffener coupled to the second end. The seat adjacent the side of the vehicle can be moved from a first position to a second position in which a clear space exists on the side of the second seat which is remote from the aisle. A vapor tube is extended to a location proximate the retort, the vapor tube having an entrance corresponding to the region of the retort along the energy delivery well that is nearest the surface exit. Executing includes determining whether speculatively executing the instructions is advised based at least in part on dynamic information associated with synchronization data and speculatively executing the instructions when it is determined that speculatively executing the instructions is advised.