{HEAD ~ The fourth merchandiser module} is positioned next to the first merchandiser module and {TAIL ~ the second merchandiser module} opposite the third merchandiser module 
is positioned next to
{ HEAD ~ The fourth merchandiser module } is positioned next to the first merchandiser module and { TAIL ~ the second merchandiser module } opposite the third merchandiser module
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH