On the coordinate z 102, for example, {TAIL ~ the probability} in {HEAD ~ regard} to a call for help of the clients A, B, C can be recorded at the time at the locations 
On the coordinate z 102 , for example , { TAIL ~ the probability } in { HEAD ~ regard } to a call for help of the clients A , B , C can be recorded at the time at the locations
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH