For example, {HEAD ~ the client} with {TAIL ~ his communications system} is traveling by train and can listen to music 
with
For example , { HEAD ~ the client } with { TAIL ~ his communications system } is traveling by train and can listen to music
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH