As a result of one or more of {HEAD ~ these aspects} of {TAIL ~ the invention}, cleaning of the pad is superior to that in the prior art 
As a result of one or more of { HEAD ~ these aspects } of { TAIL ~ the invention } , cleaning of the pad is superior to that in the prior art
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH