In {TAIL ~ another configuration} of the invention, the number of {HEAD ~ repetitions} is defined by a constant for determining the segmentation threshold value 
In { TAIL ~ another configuration } of the invention , the number of { HEAD ~ repetitions } is defined by a constant for determining the segmentation threshold value
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH