a-a a-b a-i a-t aaa aab aae aai aak aas aat aau ab- aba abb abe abi abk abs abt abu aea aeb aee aei aek aes aet aeu ai- aia aib aie aii aik ais ait aiu aka akb ake aki akk aks aku as- asa asb ase asi ask ass ast asu at- ata atb ate ati ats att atu au- aua aub aue aui auk aus aut b-u baa bab bae bai bak bas bat bau bba bbb bbe bbi bbk bbs bbt bbu be- bea beb bee bei bek bes bet beu bi- bia bib bie bii bik bis bit biu bka bkb bke bkk bks bkt bsa bsb bse bsi bsk bss bst bsu bta btb bte bti btk bts btt btu bua bub bue bui buk bus but buu eaa eab eae eai eak eas eat eau eba ebb ebe ebi ebk ebs ebt ebu eea eeb eee eek ees eet eia eib eie eii eik eis eit eiu eka ekb eke eki eks ekt eku es- esa esb ese esi esk ess est esu eta etb ete eti etk ets ett etu eu- eua eub eue eui eus eut ia- iaa iab iae iai ias iat iau iba ibb ibe ibi ibk ibs ibt ibu ie- iea iee iei iek ies iet iia iib iie iii iis iit iiu ika ikb ike iki ikk iks ikt iku is- isa isb ise isi isk iss ist isu ita itb ite iti itk its itt itu iu- iua iub iue iui ius iut k-t ka- kaa kab kae kai kak kas kat kau kba kbb kbe kbi kbk kbs kbu ke- kea keb kee kei kek kes ket kia kib kie kii kik kis kit kiu kkb kke kki kkk kks kkt kku ksa ksb kse ksi ksk kss kst ksu kta ktb kte ktk kts ktt ktu kub kue kui kuk kus kut kuu saa sab sae sai sak sas sat sau sba sbb sbe sbi sbk sbs sbt sbu se- sea seb see sei sek ses set seu sia sib sie sii sik sis sit siu sk- ska skb ske ski skk sks skt sku ss- ssa ssb sse ssi ssk sss sst ssu sta stb ste sti stk sts stt stu sua sub sue sui suk sus sut suu taa tab tae tai tak tas tat tau tba tbb tbe tbi tbk tbs tbt tbu te- tea teb tee tei tek tes tet teu tia tib tie tii tik tis tit tiu tka tkb tke tkk tks tkt tsa tsb tse tsi tsk tss tst tsu tta ttb tte tti ttk tts ttt ttu tua tub tue tui tuk tus tut tuu ua- uaa uab uae uai uak uas uat uau uba ubb ube ubi ubk ubs ubt ubu uea ueb uee uei ues uet uia uib uie uii uis uit uiu uka ukb uke uki ukk uku usa usb use usi usk uss ust usu uta utb ute uti utk uts utt utu uua uue uus uut uuu