{HEAD ~ The splitting} up of {TAIL ~ the remaining fraction} high in plastics into the light fraction and the heavy fraction may take place using air sizing 
up of
{ HEAD ~ The splitting } up of { TAIL ~ the remaining fraction } high in plastics into the light fraction and the heavy fraction may take place using air sizing
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH