b-u bbb bbg bbi bbk bbn bbs bbt bbu bgb bgg bgi bgk bgn bgs bgt bgu bi- bib big bii bik bin bis bit biu bkb bkg bkk bkn bks bkt bnb bng bni bnk bnn bns bnt bnu bsb bsg bsi bsk bsn bss bst bsu btb btg bti btk btn bts btt btu bub bug bui buk bun bus but buu gbg gbi gbk gbn gbs gbt gbu ggb ggg ggi ggn ggs ggt ggu gib gig gii gik gin gis git giu gkb gkn gks gkt gnb gni gnn gns gnt gnu gsb gsg gsi gsk gsn gss gst gsu gtb gtg gti gtk gtn gts gtt gtu gu- gub gug gui guk gun gus gut guu ibb ibg ibi ibk ibn ibs ibt ibu igb igg igi igk ign igs igt igu iib iii iin iis iit iiu ikb iki ikk iks ikt iku in- inb ing ini ink inn ins int inu is- isb isg isi isk isn iss ist isu itb itg iti itk itn its itt itu iu- iub iug iui ius iut k-t kbb kbi kbk kbn kbs kbu kgb kgi kgs kgu kib kig kii kik kin kis kit kiu kkb kki kkk kkn kks kkt kku kn- kng kni knk knn knt knu ksb ksg ksi ksk ksn kss kst ksu ktb ktg ktk ktn kts ktt ktu kub kug kui kuk kun kus kut kuu n-i nbb nbg nbi nbk nbn nbs nbt nbu ngb ngg ngi ngk ngn ngs ngt ngu nib nig nii nik nin nis nit niu nki nkk nkn nks nkt nku nnb nng nni nnk nnn nns nnt nnu nsb nsg nsi nsk nsn nss nst nsu ntb ntg nti ntk ntn nts ntt ntu nub nug nui nuk nun nus nut nuu sbb sbg sbi sbk sbn sbs sbt sbu sgb sgg sgi sgk sgn sgs sgt sgu sib sig sii sik sin sis sit siu sk- skb skg ski skk sks skt sku snb sng sni snk snn sns snt snu ss- ssb ssg ssi ssk ssn sss sst ssu stb stg sti stk stn sts stt stu sub sug sui suk sun sus sut suu tbb tbg tbi tbk tbn tbs tbt tbu tgb tgg tgi tgk tgn tgs tgt tgu tib tig tii tik tin tis tit tiu tkb tkg tkk tks tkt tnb tng tni tnk tnn tns tnt tsb tsg tsi tsk tsn tss tst tsu ttb ttg tti ttk ttn tts ttt ttu tub tug tui tuk tun tus tut tuu ubb ubg ubi ubk ubn ubs ubt ubu ugb ugg ugi ugk ugn ugs ugt ugu uib uig uii uin uis uit uiu ukb uki ukk ukn uku un- unb ung uni unk unn uns unt unu usb usg usi usk usn uss ust usu utb uti utk utn uts utt utu uug uun uus uut uuu