b-u bbb bbi bbn bbs bbt bbu bbw bi- bib bii bin bis bit biu biw bnb bni bnn bns bnt bnu bnw bsb bsi bsn bss bst bsu bsw btb bti btn bts btt btu btw bub bui bun bus but buu buw bwb bwi bws bwu ibb ibi ibn ibs ibt ibu ibw iib iii iin iis iit iiu iiw in- inb ini inn ins int inu is- isb isi isn iss ist isu isw itb iti itn its itt itu iu- iub iui ius iut iwb iwi iws iwt iwu iww n-i nbb nbi nbn nbs nbt nbu nbw nib nii nin nis nit niu nnb nni nnn nns nnt nnu nnw nsb nsi nsn nss nst nsu nsw ntb nti ntn nts ntt ntu nub nui nun nus nut nuu nwb nwi nwn nws nwt nwu sbb sbi sbn sbs sbt sbu sbw sib sii sin sis sit siu siw snb sni snn sns snt snu snw ss- ssb ssi ssn sss sst ssu ssw stb sti stn sts stt stu stw sub sui sun sus sut suu suw swb swi swn sws swt swu tbb tbi tbn tbs tbt tbu tib tii tin tis tit tiu tiw tnb tni tnn tns tnt tnw tsb tsi tsn tss tst tsu tsw ttb tti ttn tts ttt ttu ttw tub tui tun tus tut tuu twb twi twn tws twt twu tww ubb ubi ubn ubs ubt ubu ubw uib uii uin uis uit uiu un- unb uni unn uns unt unu unw usb usi usn uss ust usu usw utb uti utn uts utt utu uun uus uut uuu uwb uwn uws uww wbb wbi wbn wbs wbt wbw wib wii win wis wit wiu wn- wnn wns wnt wnu wnw wsb wsi wsn wss wst wsu wsw wtb wti wtn wts wtt wtu wtw wub wun wus wut wwi wwn wwt wwu www