a plurality of nodes having {TAIL ~ location information} to respectively correspond to the starting position and {HEAD ~ the target positions} at which the articles are transported 
a plurality of nodes having { TAIL ~ location information } to respectively correspond to the starting position and { HEAD ~ the target positions } at which the articles are transported
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH