| http://www.w3.org/ns/prov#value | - Thus, in step 2636, N.via is set to ???nil??? to indicate that bridge B is not on the best path from N to T. If N's parent is the bridge B, as checked in step 2638, then the best path is T, B, N. Thus, in step 2640, N.via is set to N. Otherwise, in step 2642 node N inherits the same via as its parent P.via.
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