{HEAD ~ Process} 4, comprising {TAIL ~ a subsequent step} of condensing the n pentane stripping agent 
comprising
{ HEAD ~ Process } 4 , comprising { TAIL ~ a subsequent step } of condensing the n pentane stripping agent
HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH