{HEAD ~ a circuit} for decoding {TAIL ~ the first prediction picture} and the second prediction picture from the reference picture and a display picture from the first prediction picture and the second prediction picture 
for decoding
{ HEAD ~ a circuit } for decoding { TAIL ~ the first prediction picture } and the second prediction picture from the reference picture and a display picture from the first prediction picture and the second prediction picture
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH