a-a a-b a-i a-t aaa aab aai aak aan aas aat aau ab- aba abb abi abk abn abs abt abu ai- aia aib aii aik ain ais ait aiu aka akb aki akk akn aks aku an- ana anb ani ank ann ans ant anu as- asa asb asi ask asn ass ast asu at- ata atb ati atn ats att atu au- aua aub aui auk aun aus aut b-u baa bab bai bak ban bas bat bau bba bbb bbi bbk bbn bbs bbt bbu bi- bia bib bii bik bin bis bit biu bka bkb bkk bkn bks bkt bna bnb bni bnk bnn bns bnt bnu bsa bsb bsi bsk bsn bss bst bsu bta btb bti btk btn bts btt btu bua bub bui buk bun bus but buu ia- iaa iab iai ian ias iat iau iba ibb ibi ibk ibn ibs ibt ibu iia iib iii iin iis iit iiu ika ikb iki ikk iks ikt iku in- ina inb ini ink inn ins int inu is- isa isb isi isk isn iss ist isu ita itb iti itk itn its itt itu iu- iua iub iui ius iut k-t ka- kaa kab kai kak kan kas kat kau kba kbb kbi kbk kbn kbs kbu kia kib kii kik kin kis kit kiu kkb kki kkk kkn kks kkt kku kn- kna kni knk knn knt knu ksa ksb ksi ksk ksn kss kst ksu kta ktb ktk ktn kts ktt ktu kub kui kuk kun kus kut kuu n-i naa nab nai nak nan nas nat nau nba nbb nbi nbk nbn nbs nbt nbu nia nib nii nik nin nis nit niu nka nki nkk nkn nks nkt nku nna nnb nni nnk nnn nns nnt nnu nsa nsb nsi nsk nsn nss nst nsu nta ntb nti ntk ntn nts ntt ntu nua nub nui nuk nun nus nut nuu saa sab sai sak san sas sat sau sba sbb sbi sbk sbn sbs sbt sbu sia sib sii sik sin sis sit siu sk- ska skb ski skk sks skt sku sna snb sni snk snn sns snt snu ss- ssa ssb ssi ssk ssn sss sst ssu sta stb sti stk stn sts stt stu sua sub sui suk sun sus sut suu taa tab tai tak tan tas tat tau tba tbb tbi tbk tbn tbs tbt tbu tia tib tii tik tin tis tit tiu tka tkb tkk tks tkt tna tnb tni tnk tnn tns tnt tsa tsb tsi tsk tsn tss tst tsu tta ttb tti ttk ttn tts ttt ttu tua tub tui tuk tun tus tut tuu ua- uaa uab uai uak uan uas uat uau uba ubb ubi ubk ubn ubs ubt ubu uia uib uii uin uis uit uiu uka ukb uki ukk ukn uku un- una unb uni unk unn uns unt unu usa usb usi usk usn uss ust usu uta utb uti utk utn uts utt utu uua uun uus uut uuu