CLICS has well retrieved the space groups, the local atomic environments, and the connections of polyhedral geometries except for the exact number of connections. The meanings of geometric concepts have also been acquired. The arrangement of atoms defines crystal structures; in turn, CLICS feature space is expected to have grasped the patterns of the arrangement of atoms, from the named crystal structures to arbitrary structures that are not attributed to any class of structures. To confirm this idea, we demonstrate similar structure search in this section, and also improved classification accuracies of named crystal structures by only training the projection heads of the CLICS graph encoder in the next section 4.4.