providing {HEAD ~ a signal representative} of {TAIL ~ a reference rate} of change of the utensil content weight 
of
providing { HEAD ~ a signal representative } of { TAIL ~ a reference rate } of change of the utensil content weight
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH