According to {HEAD ~ exemplary embodiments}, {TAIL ~ a device} for air sifting is provided for splitting up the remaining fraction 
According to { HEAD ~ exemplary embodiments } , { TAIL ~ a device } for air sifting is provided for splitting up the remaining fraction
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH