Spatial distribution of core spacing in I18308. The background shows the ALMA 1.3 mm continuum image. The boundary of the F1, F2, and hub regions is the same as in Fig. 2. Blue dots mark core locations, while green diamonds represent fragments. The solid yellow line denotes the minimum path connecting these elements, given by the MST algorithm (see Sect. 3.4.1). The synthesized beam of 0.71″ × 0.59″ and a 0.1 pc scale bar are shown in the lower left and lower right corners, respectively.