In step 706, {HEAD ~ the process} averages {TAIL ~ all the probe match scores} in each of the K clusters to form new centers for the clusters, and goes to step 708 
averages
In step 706 , { HEAD ~ the process } averages { TAIL ~ all the probe match scores } in each of the K clusters to form new centers for the clusters , and goes to step 708
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH