Size and mass of clumps depicted using colored circles and triangles, as shown in Fig. E.1, on the size-mass map. The size refers to the effective diameter of the clumps, which is twice the effective radius. The red and blue dotted lines represent the line masses of 230 and 670 M_⊙ pc⁻¹ respectively, which serve as representative values for non-star-forming and star-forming filaments (Li et al. 2016). The orange lines illustrate the relationship associated with massive star formation (Kauffmann et al. 2010).