{HEAD ~ The apparatus} 1 wherein said {TAIL ~ first set} of through holes and said second set of through holes comprises a plurality of holes 
wherein
{ HEAD ~ The apparatus } 1 wherein said { TAIL ~ first set } of through holes and said second set of through holes comprises a plurality of holes
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH