{TAIL ~ A flow cell} of {HEAD ~ the type} that may be used in the synthesis of arrays of DNA probes and the like, comprising: 
{ TAIL ~ A flow cell } of { HEAD ~ the type } that may be used in the synthesis of arrays of DNA probes and the like , comprising :
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH