Thus, {HEAD ~ several CDs} in their envelopes can be accommodated in {TAIL ~ each hanging file folder} without risk of scratching 
accommodated in
Thus , { HEAD ~ several CDs } in their envelopes can be accommodated in { TAIL ~ each hanging file folder } without risk of scratching
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH