{HEAD ~ The computerized apparatus} of clam 1, wherein {TAIL ~ the input lines} are preceded with a prompt 
{ HEAD ~ The computerized apparatus } of clam 1 , wherein { TAIL ~ the input lines } are preceded with a prompt
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH