In {TAIL ~ the prior art}, a movement space or movement profile 601 is generated in regard to {HEAD ~ locality} of the clients A, B, C 
In { TAIL ~ the prior art } , a movement space or movement profile 601 is generated in regard to { HEAD ~ locality } of the clients A , B , C
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH