A construction toy has a main body made of plastic or rubber in one step forming and a connector made of plastic or rubber in one step forming, at least a connection groove is disposed and concave in the main body, the connector includes at least two joints and a neck fixedly connected to the two joints. The memory E-region can be used in operations that will be referred as destaging andor restaging to sequentialize sets of exception records to reduce the time and energy spent in executing seeks in the disk E-region. Responsive to a determination that there are no additional elements of the kinematic pattern, forms a kinematic pattern from the set of received elements and computes a signature from the set of received elements. The center assembly may be a core comprising a plurality of protrusions on its outer surface or an intermediate layer comprising a plurality of protrusions disposed about a spherical core. According to the invention, the support base material in which a deep hole is formed is formed with an amorphous carbon film, the amorphous carbon film used as the support base material for the lower electrode is removed by dry etching after forming the lower electrode, and it is thereby possible to prevent the lower electrode from collapsing. structure that matches and engages with the first seal structure.