a-a a-b a-i aaa aab aae aai aan aao aau ab- aba abb abe abi abn abo abu aea aeb aee aei aen aeo aeu ai- aia aib aie aii ain aio aiu an- ana anb ane ani ann ano anu aoa aob aoe aoi aon aoo aou au- aua aub aue aui aun auo b-u baa bab bae bai ban bao bau bba bbb bbe bbi bbn bbo bbu be- bea beb bee bei ben beo beu bi- bia bib bie bii bin bio biu bna bnb bne bni bnn bno bnu boa bob boe boi bon boo bou bua bub bue bui bun buo buu eaa eab eae eai ean eao eau eba ebb ebe ebi ebn ebo ebu eea eeb eee een eeo eia eib eie eii ein eio eiu en- ena enb ene eni enn eno enu eo- eoa eob eoe eoi eon eoo eou eu- eua eub eue eui eun ia- iaa iab iae iai ian iao iau iba ibb ibe ibi ibn ibo ibu ie- iea iee iei ien iia iib iie iii iin iio iiu in- ina inb ine ini inn ino inu io- ioa iob ioe ioi ion ioo iou iu- iua iub iue iui n-i naa nab nae nai nan nao nau nba nbb nbe nbi nbn nbo nbu ne- nea neb nee nei nen neo neu nia nib nie nii nin nio niu nna nnb nne nni nnn nno nnu no- noa nob noe noi non noo nou nua nub nue nui nun nuo nuu o-i oaa oab oae oai oan oao oau ob- oba obb obe obi obn obo obu oea oeb oee oei oen oeo oia oib oie oii oin oio oiu on- ona onb one oni onn ono onu oo- ooa oob ooi oon ooo ou- oua oue oui oun ouo ua- uaa uab uae uai uan uao uau uba ubb ube ubi ubn ubo ubu uea ueb uee uei uen uia uib uie uii uin uio uiu un- una unb une uni unn uno unu uoa uob uoe uon uoo uua uue uun uuu