{HEAD ~ A receptacle} has {TAIL ~ an open top} for receiving a removable and replaceable scratch pad 
has
{ HEAD ~ A receptacle } has { TAIL ~ an open top } for receiving a removable and replaceable scratch pad
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH