{HEAD ~ The method} 2 wherein {TAIL ~ the interface description language} is the “Interface Definition Language”  
wherein
{ HEAD ~ The method } 2 wherein { TAIL ~ the interface description language } is the “ Interface Definition Language ”
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH