{HEAD ~ The route information} of {TAIL ~ each link} of the plurality of links is updated in real time 
of
{ HEAD ~ The route information } of { TAIL ~ each link } of the plurality of links is updated in real time
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH