The interface comprises {HEAD ~ a first area} that shows {TAIL ~ the subject and contributor name}, and a second area that shows the content of the information item 
shows
The interface comprises { HEAD ~ a first area } that shows { TAIL ~ the subject and contributor name } , and a second area that shows the content of the information item
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH