{HEAD ~ The system} includes {TAIL ~ a circuit board}, a solid state switching device, a heat sink, and a temperature sensor 
includes
{ HEAD ~ The system } includes { TAIL ~ a circuit board } , a solid state switching device , a heat sink , and a temperature sensor
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH