{HEAD ~ The oil} is separated from {TAIL ~ the ice} by vibrating the inclined surface formed by the bar screen  
is separated from
{ HEAD ~ The oil } is separated from { TAIL ~ the ice } by vibrating the inclined surface formed by the bar screen
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH