In {HEAD ~ the region} of {TAIL ~ the diverter}, at least one of the cores has a lower height than the cores outside the region of the diverter 
of
In { HEAD ~ the region } of { TAIL ~ the diverter } , at least one of the cores has a lower height than the cores outside the region of the diverter
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH