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False primary edges because of partial elements. (A) The schematic structure of full-length Tc1 and Tc7 (see also Fig. 4) and a partially deleted Tc7, which preserves only the region similar to Tc1. (B) Graph constructed for Tc1s and Tc7s. Closed nodes represent full-length elements. Solid and dashed lines represent primary and secondary edges, respectively. (C) Certain primary edges are removed from the partial Tc7 to eliminate the false ones.
