{HEAD ~ The quality} of training of the network is then checked with {TAIL ~ a second set} of data in the recall phase of 102 
is checked with
{ HEAD ~ The quality } of training of the network is then checked with { TAIL ~ a second set } of data in the recall phase of 102
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH