a-a a-b a-i a-t aaa aab aai aan aao aas aat aau aax ab- aba abb abi abn abo abs abt abu abx ai- aia aib aii ain aio ais ait aiu aix an- ana anb ani ann ano ans ant anu anx aoa aob aoi aon aoo aos aot aou aox as- asa asb asi asn aso ass ast asu asx at- ata atb ati atn ato ats att atu atx au- aua aub aui aun auo aus aut aux ax- axa axi axn axo axs axt axx b-u baa bab bai ban bao bas bat bau bax bba bbb bbi bbn bbo bbs bbt bbu bbx bi- bia bib bii bin bio bis bit biu bix bna bnb bni bnn bno bns bnt bnu bnx boa bob boi bon boo bos bot bou box bsa bsb bsi bsn bso bss bst bsu bsx bta btb bti btn bto bts btt btu btx bua bub bui bun buo bus but buu bux bxb bxi bxn bxo bxx ia- iaa iab iai ian iao ias iat iau iba ibb ibi ibn ibo ibs ibt ibu ibx iia iib iii iin iio iis iit iiu iix in- ina inb ini inn ino ins int inu inx io- ioa iob ioi ion ioo ios iot iou is- isa isb isi isn iso iss ist isu ita itb iti itn ito its itt itu itx iu- iua iub iui ius iut ixi ixn n-i naa nab nai nan nao nas nat nau nax nba nbb nbi nbn nbo nbs nbt nbu nbx nia nib nii nin nio nis nit niu nix nna nnb nni nnn nno nns nnt nnu no- noa nob noi non noo nos not nou nox nsa nsb nsi nsn nso nss nst nsu nsx nta ntb nti ntn nto nts ntt ntu ntx nua nub nui nun nuo nus nut nuu nux nxt o-i oaa oab oai oan oao oas oat oau oax ob- oba obb obi obn obo obs obt obu obx oia oib oii oin oio ois oit oiu on- ona onb oni onn ono ons ont onu onx oo- ooa oob ooi oon ooo oos oot oox os- osa osb osi osn oso oss ost osu osx ot- ota otb oti otn oto ots ott otu ou- oua oui oun ouo ous out ox- oxa oxb oxi oxn oxo oxt oxx saa sab sai san sao sas sat sau sax sba sbb sbi sbn sbo sbs sbt sbu sbx sia sib sii sin sio sis sit siu six sna snb sni snn sno sns snt snu soa sob soi son soo sos sot sou sox ss- ssa ssb ssi ssn sso sss sst ssu ssx sta stb sti stn sto sts stt stu stx sua sub sui sun suo sus sut suu sux sxi sxn sxs sxt sxu t-x taa tab tai tan tao tas tat tau tax tba tbb tbi tbn tbo tbs tbt tbu tia tib tii tin tio tis tit tiu tix tna tnb tni tnn tno tns tnt tnx to- toa tob toi ton too tos tot tou tox tsa tsb tsi tsn tso tss tst tsu tsx tta ttb tti ttn tto tts ttt ttu ttx tua tub tui tun tuo tus tut tuu tux txi txn txs txt txu ua- uaa uab uai uan uao uas uat uau uba ubb ubi ubn ubo ubs ubt ubu ubx uia uib uii uin uio uis uit uiu un- una unb uni unn uno uns unt unu unx uoa uob uon uoo uos uot uox usa usb usi usn uso uss ust usu usx uta utb uti utn uto uts utt utu utx uua uun uus uut uuu uxb uxo uxt uxu xaa xan xas xat xau xbx xia xii xin xio xis xit xiu xix xna xno xns xnu xoa xoi xon xoo xos xot xox xsa xsb xsi xss xst xti xts xtx xui xun xus xxi xxo xxx