{HEAD ~ The system} also keeps to a minimum the costs of disposal of {TAIL ~ the absorbent material} after it has served its function 
{ HEAD ~ The system } also keeps to a minimum the costs of disposal of { TAIL ~ the absorbent material } after it has served its function
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH