{HEAD ~ The vacuum cleaner} 1, wherein the filter bag is made of {TAIL ~ synthetic fibers} 
{ HEAD ~ The vacuum cleaner } 1 , wherein the filter bag is made of { TAIL ~ synthetic fibers }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL