{HEAD ~ The present invention} relates to programmable logic devices, such as field programmable gate arrays , and, in particular, to the logic circuits and {TAIL ~ logic gates} in such devices 
relates to
{ HEAD ~ The present invention } relates to programmable logic devices , such as field programmable gate arrays , and , in particular , to the logic circuits and { TAIL ~ logic gates } in such devices
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH