a-a a-b a-i aaa aab aah aai aak aan aao aas ab- aba abb abh abi abk abn abo abs aha ahb ahh ahi ahk ahn aho ahs ai- aia aib aih aii aik ain aio ais aka akb akh aki akk akn ako aks an- ana anb anh ani ank ann ano ans aoa aob aoh aoi aok aon aoo aos as- asa asb ash asi ask asn aso ass baa bab bah bai bak ban bao bas bba bbb bbh bbi bbk bbn bbo bbs bha bhb bhh bhi bhk bho bhs bi- bia bib bih bii bik bin bio bis bka bkb bkk bkn bko bks bna bnb bni bnk bnn bno bns boa bob boh boi bok bon boo bos bsa bsb bsh bsi bsk bsn bso bss h-i haa hab hah hai hak han hao has hba hbb hbh hbi hbk hbn hbo hbs hha hhb hhh hhi hhk hhn hho hhs hia hib hih hii hik hin hio his hka hkb hkh hki hkk hkn hko hks hna hnb hnh hnk hnn hno hns hoa hob hoh hoi hok hon hoo hos hsa hsb hsh hsi hsk hsn hss ia- iaa iab iah iai ian iao ias iba ibb ibh ibi ibk ibn ibo ibs iha ihb ihh ihi ihk ihn iho ihs iia iib iih iii iin iio iis ika ikb iki ikk iko iks in- ina inb inh ini ink inn ino ins io- ioa iob ioh ioi ion ioo ios is- isa isb ish isi isk isn iso iss ka- kaa kab kah kai kak kan kao kas kba kbb kbh kbi kbk kbn kbo kbs kha khh khi khk khn kho khs kia kib kih kii kik kin kio kis kkb kkh kki kkk kkn kks kn- kna kni knk knn kno koa kob koh koi kok kon koo kos ksa ksb ksh ksi ksk ksn kso kss n-i naa nab nah nai nak nan nao nas nba nbb nbi nbk nbn nbo nbs nha nhb nhh nhi nhk nhn nhs nia nib nih nii nik nin nio nis nka nki nkk nkn nko nks nna nnb nnh nni nnk nnn nno nns no- noa nob noh noi nok non noo nos nsa nsb nsh nsi nsk nsn nso nss o-i oaa oab oah oai oak oan oao oas ob- oba obb obh obi obk obn obo obs oha ohh ohi ohn oho ohs oia oib oii oik oin oio ois oka okb oki okk oko oks on- ona onb onh oni onk onn ono ons oo- ooa oob ooh ooi ook oon ooo oos os- osa osb osh osi osk osn oso oss saa sab sah sai sak san sao sas sba sbb sbh sbi sbk sbn sbo sbs sh- sha shb shh shi shk shn sho shs sia sib sih sii sik sin sio sis sk- ska skb skh ski skk sko sks sna snb sni snk snn sno sns soa sob soh soi sok son soo sos ss- ssa ssb ssh ssi ssk ssn sso sss