Each remote control command set includes {HEAD ~ a set} of {TAIL ~ commands} for operating at least one of various remotely controllable devices 
of
Each remote control command set includes { HEAD ~ a set } of { TAIL ~ commands } for operating at least one of various remotely controllable devices
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH