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