b-u bbb bbe bbn bbs bbt bbu bbw be- beb bee ben bes bet beu bew bnb bne bnn bns bnt bnu bnw bsb bse bsn bss bst bsu bsw btb bte btn bts btt btu btw bub bue bun bus but buu buw bwb bws bwu ebb ebe ebn ebs ebt ebu ebw eeb eee een ees eet eew en- enb ene enn ens ent enu enw es- esb ese esn ess est esu esw etb ete etn ets ett etu etw eu- eub eue eun eus eut ewb ewe ews ewt ewu eww nbb nbe nbn nbs nbt nbu nbw ne- neb nee nen nes net neu new nnb nne nnn nns nnt nnu nnw nsb nse nsn nss nst nsu nsw ntb nte ntn nts ntt ntu nub nue nun nus nut nuu nwb nwe nwn nws nwt nwu sbb sbe sbn sbs sbt sbu sbw se- seb see sen ses set seu sew snb sne snn sns snt snu snw ss- ssb sse ssn sss sst ssu ssw stb ste stn sts stt stu stw sub sue sun sus sut suu suw swb swe swn sws swt swu tbb tbe tbn tbs tbt tbu te- teb tee ten tes tet teu tew tnb tne tnn tns tnt tnw tsb tse tsn tss tst tsu tsw ttb tte ttn tts ttt ttu ttw tub tue tun tus tut tuu twb twe twn tws twt twu tww ubb ube ubn ubs ubt ubu ubw ueb uee uen ues uet uew un- unb une unn uns unt unu unw usb use usn uss ust usu usw utb ute utn uts utt utu uue uun uus uut uuu uwb uwe uwn uws uww wbb wbe wbn wbs wbt wbw web wee wen wes wet wew wn- wne wnn wns wnt wnu wnw wsb wse wsn wss wst wsu wsw wtb wtn wts wtt wtu wtw wub wue wun wus wut wwe wwn wwt wwu www