Apparatus 38 may also have four or more discrete operating states, or may have {TAIL ~ multiple operating states} along {HEAD ~ an analog scale} 
Apparatus 38 may also have four or more discrete operating states , or may have { TAIL ~ multiple operating states } along { HEAD ~ an analog scale }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD