As the degree of tilt increases, {HEAD ~ the absence} of {TAIL ~ an indicator} in one or more compartments will indicate the degree of tilt 
of
As the degree of tilt increases , { HEAD ~ the absence } of { TAIL ~ an indicator } in one or more compartments will indicate the degree of tilt
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