Correlation between the left and right terms in Eq. (1) revealed by the values of M, L, and ∇V listed in Tables 1 and 2. The dotted blue line is the line of equality of the left and right terms. Tables 1 and show two cases. A dense clump with two or more filaments leading to it, or only one filament with a gradient that can be identified (the rows with only one entry for the gradient). The number of clumps in the two cases is 49 and 25, and they marked by black and red plus, respectively.