nnn nns nnt nnu nnw nsn nss nst nsu nsw ntn nts ntt ntu nun nus nut nuu nwn nws nwt nwu snn sns snt snu snw ss- ssn sss sst ssu ssw stn sts stt stu stw sun sus sut suu suw swn sws swt swu tnn tns tnt tnw tsn tss tst tsu tsw ttn tts ttt ttu ttw tun tus tut tuu twn tws twt twu tww un- unn uns unt unu unw usn uss ust usu usw utn uts utt utu uun uus uut uuu uwn uws uww wn- wnn wns wnt wnu wnw wsn wss wst wsu wsw wtn wts wtt wtu wtw wun wus wut wwn wwt wwu www