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