Each of the first slotted partitions has opposed slots extending inwardly from {HEAD ~ opposed edges} of the partition to facilitate folding {TAIL ~ the partition} 
to facilitate folding
Each of the first slotted partitions has opposed slots extending inwardly from { HEAD ~ opposed edges } of the partition to facilitate folding { TAIL ~ the partition }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL