a-a a-b a-i a-t aaa aab aai aan aas aat aau ab- aba abb abi abn abs abt abu ai- aia aib aii ain ais ait aiu an- ana anb ani ann ans ant anu as- asa asb asi asn ass ast asu at- ata atb ati atn ats att atu au- aua aub aui aun aus aut b-u baa bab bai ban bas bat bau bba bbb bbi bbn bbs bbt bbu bi- bia bib bii bin bis bit biu bna bnb bni bnn bns bnt bnu bsa bsb bsi bsn bss bst bsu bta btb bti btn bts btt btu bua bub bui bun bus but buu ia- iaa iab iai ian ias iat iau iba ibb ibi ibn ibs ibt ibu iia iib iii iin iis iit iiu in- ina inb ini inn ins int inu is- isa isb isi isn iss ist isu ita itb iti itn its itt itu iu- iua iub iui ius iut n-i naa nab nai nan nas nat nau nba nbb nbi nbn nbs nbt nbu nia nib nii nin nis nit niu nna nnb nni nnn nns nnt nnu nsa nsb nsi nsn nss nst nsu nta ntb nti ntn nts ntt ntu nua nub nui nun nus nut nuu saa sab sai san sas sat sau sba sbb sbi sbn sbs sbt sbu sia sib sii sin sis sit siu sna snb sni snn sns snt snu ss- ssa ssb ssi ssn sss sst ssu sta stb sti stn sts stt stu sua sub sui sun sus sut suu taa tab tai tan tas tat tau tba tbb tbi tbn tbs tbt tbu tia tib tii tin tis tit tiu tna tnb tni tnn tns tnt tsa tsb tsi tsn tss tst tsu tta ttb tti ttn tts ttt ttu tua tub tui tun tus tut tuu ua- uaa uab uai uan uas uat uau uba ubb ubi ubn ubs ubt ubu uia uib uii uin uis uit uiu un- una unb uni unn uns unt unu usa usb usi usn uss ust usu uta utb uti utn uts utt utu uua uun uus uut uuu