{HEAD ~ The new product stream} containing ethylbenzene may then be sent to {TAIL ~ the existing styrene production facility} for further processing to form styrene 
sent to
{ HEAD ~ The new product stream } containing ethylbenzene may then be sent to { TAIL ~ the existing styrene production facility } for further processing to form styrene
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH