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