An electric system for use in {TAIL ~ a structure} which includes {HEAD ~ a first body} and a second body, said second body being movable relative to said first body, said system comprising: 
An electric system for use in { TAIL ~ a structure } which includes { HEAD ~ a first body } and a second body , said second body being movable relative to said first body , said system comprising :
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH