Because of {HEAD ~ the separation} of {TAIL ~ this raw sand fraction}, the subsequent process steps are relieved with respect to the separated raw sand fraction 
of
Because of { HEAD ~ the separation } of { TAIL ~ this raw sand fraction } , the subsequent process steps are relieved with respect to the separated raw sand fraction
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH