A programmable controller for homes and buildings and their related grounds, such as {HEAD ~ thermostat}, that has a display and {TAIL ~ an external interface} 
has
A programmable controller for homes and buildings and their related grounds , such as { HEAD ~ thermostat } , that has a display and { TAIL ~ an external interface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL