{HEAD ~ a support unit} for supporting {TAIL ~ the second end portion} of the stopper, the support unit being provided to the electronic device, 
for supporting
{ HEAD ~ a support unit } for supporting { TAIL ~ the second end portion } of the stopper , the support unit being provided to the electronic device ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH