{TAIL ~ each container electronics} and the first box control electronics are housed within {HEAD ~ the first temperature side} of the first freezer 
{ TAIL ~ each container electronics } and the first box control electronics are housed within { HEAD ~ the first temperature side } of the first freezer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH