{HEAD ~ An interactive display system} includes {TAIL ~ a display} such as a cathode ray tube , for example, and a display controller 
includes
{ HEAD ~ An interactive display system } includes { TAIL ~ a display } such as a cathode ray tube , for example , and a display controller
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH