{HEAD ~ A system} includes {TAIL ~ a turntable}, first and second outlets, and a dresser 
includes
{ HEAD ~ A system } includes { TAIL ~ a turntable } , first and second outlets , and a dresser
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH