The connector 6, wherein {HEAD ~ said one or more channels} comprises {TAIL ~ two or more channels} aligned parallel to said first axis 
comprises
The connector 6 , wherein { HEAD ~ said one or more channels } comprises { TAIL ~ two or more channels } aligned parallel to said first axis
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH