Provided are a polymer for an organic electroluminescent element, which has high light emission efficiency and is applicable to a wet process, a cured product thereof, and an organic electroluminescent element using the cured product. The manifold comprises of two components a header and tank. When a high-upland division is present in a vicinity of a present position, a portion of the high upland area determination data is read into the external memory. As a result, the player P can properly adjust the positional relationship between the camera unit 42 and himselfherself before starting a game. Routing information is further shared with the external protocol peers, and fault tolerance is provided in some embodiments by establishing redundant communication sessions with external protocol peers. Certain exemplary embodiments provide a method comprising: non-destructively removably attaching a headrest assembly to a pair of uprights supporting a seat back; and adjusting the headrest assembly.