The kit also includes one or more additional containers, {HEAD ~ each container} holding {TAIL ~ a binding oligonucleotide} 
holding
The kit also includes one or more additional containers , { HEAD ~ each container } holding { TAIL ~ a binding oligonucleotide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL