Thus, {HEAD ~ the invention} periodically supplies {TAIL ~ hot water} to the brewer each time the button is actuated 
periodically supplies
Thus , { HEAD ~ the invention } periodically supplies { TAIL ~ hot water } to the brewer each time the button is actuated
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH