a-a a-b a-i aaa aab aai aam aan aao aar aau aax ab- aba abb abi abm abn abo abr abu abx ai- aia aib aii aim ain aio air aiu aix ama amb ami amm amn amo amr amu amx an- ana anb ani anm ann ano anr anu anx aoa aob aoi aom aon aoo aor aou aox ar- ara arb ari arm arn aro arr aru arx au- aua aub aui aum aun auo aur aux ax- axa axi axm axn axo axr axx b-u baa bab bai bam ban bao bar bau bax bba bbb bbi bbm bbn bbo bbr bbu bbx bi- bia bib bii bim bin bio bir biu bix bma bmb bmi bmm bmn bmo bmr bmu bmx bna bnb bni bnn bno bnr bnu bnx boa bob boi bom bon boo bor bou box bra brb bri brm brn bro brr bru brx bua bub bui bum bun buo bur buu bux bxb bxi bxm bxn bxo bxx ia- iaa iab iai iam ian iao iar iau iba ibb ibi ibm ibn ibo ibr ibu ibx iia iib iii iim iin iio iir iiu iix im- ima imb imi imm imn imo imu imx in- ina inb ini inm inn ino inr inu inx io- ioa iob ioi iom ion ioo ior iou ir- ira irb iri irm irn iro irr iru irx iu- iua iub iui ium iur ixi ixn m-o m-r maa mab mai mam man mao mar mau max mba mbb mbi mbm mbo mbr mbu mbx mi- mia mib mii mim min mio mir miu mix mma mmb mmi mmm mmn mmo mmr mmu mmx mna mnb mni mnm mnn mno mnr mnu moa mob moi mom mon moo mor mou mox mra mrb mri mrm mrn mro mrr mru mrx mua mub mui mum mun mur muu mux mxa mxi mxn mxr mxu n-i naa nab nai nam nan nao nar nau nax nba nbb nbi nbm nbn nbo nbr nbu nbx nia nib nii nim nin nio nir niu nix nma nmb nmi nmm nmn nmo nmr nmu nna nnb nni nnm nnn nno nnu no- noa nob noi nom non noo nor nou nox nra nrb nri nrm nrn nro nrr nru nrx nua nub nui num nun nuo nur nuu nux o-i oaa oab oai oam oan oao oar oau oax ob- oba obb obi obm obn obo obr obu obx oia oib oii oim oin oio oir oiu om- oma omb omi omm omn omo omr omu omx on- ona onb oni onn ono onr onu onx oo- ooa oob ooi oom oon ooo oor oox or- ora orb ori orm orn oro orr oru orx ou- oua oui oum oun ouo our ox- oxa oxb oxi oxn oxo oxx ra- raa rab rai ram ran rao rar rau rax rba rbb rbi rbm rbn rbo rbr rbu rbx ria rib rii rim rin rio rir rix rma rmb rmi rmm rmn rmo rmr rmx rna rnb rni rnm rnn rno rnr rnu roa rob roi rom ron roo ror rou rox rra rrb rri rrm rrn rrr rru rua rub rui rum run ruo rur ruu rux rxr ua- uaa uab uai uam uan uao uar uau uba ubb ubi ubn ubo ubr ubu ubx uia uib uii uim uin uio uir uiu um- uma umb umi umm umn umo umr umu un- una unb uni unm unn uno unr unu unx uoa uob uom uon uoo uor uox ur- ura urb uri urm urn uro urr uru urx uua uum uun uur uuu uxb uxo uxr uxu xaa xam xan xar xau xbr xbx xia xii xin xio xiu xix xma xmi xmm xmo xmr xmu xmx xna xno xnu xoa xoi xom xon xoo xor xox xrx xui xun xxi xxo xxx