-th a-a a-b a-i a-t aaa aab aah aai aan aao aas aat ab- aba abb abh abi abn abo abs abt aha ahb ahh ahi ahn aho ahs aht ai- aia aib aih aii ain aio ais ait an- ana anb anh ani ann ano ans ant aoa aob aoh aoi aon aoo aos aot as- asa asb ash asi asn aso ass ast at- ata atb ath ati atn ato ats att baa bab bah bai ban bao bas bat bba bbb bbh bbi bbn bbo bbs bbt bha bhb bhh bhi bho bhs bht bi- bia bib bih bii bin bio bis bit bna bnb bni bnn bno bns bnt boa bob boh boi bon boo bos bot bsa bsb bsh bsi bsn bso bss bst bta btb bth bti btn bto bts btt h-i haa hab hah hai han hao has hat hba hbb hbh hbi hbn hbo hbs hbt hha hhb hhh hhi hhn hho hhs hht hia hib hih hii hin hio his hit hna hnb hnh hnn hno hns hnt hoa hob hoh hoi hon hoo hos hot hsa hsb hsh hsi hsn hss hst hta htb hth hti htn hto hts htt ia- iaa iab iah iai ian iao ias iat iba ibb ibh ibi ibn ibo ibs ibt iha ihb ihh ihi ihn iho ihs iht iia iib iih iii iin iio iis iit in- ina inb inh ini inn ino ins int io- ioa iob ioh ioi ion ioo ios iot is- isa isb ish isi isn iso iss ist ita itb ith iti itn ito its itt n-i naa nab nah nai nan nao nas nat nba nbb nbi nbn nbo nbs nbt nha nhb nhh nhi nhn nhs nht nia nib nih nii nin nio nis nit nna nnb nnh nni nnn nno nns nnt no- noa nob noh noi non noo nos not nsa nsb nsh nsi nsn nso nss nst nta ntb nth nti ntn nto nts ntt o-i oaa oab oah oai oan oao oas oat ob- oba obb obh obi obn obo obs obt oha ohh ohi ohn oho ohs oht oia oib oii oin oio ois oit on- ona onb onh oni onn ono ons ont oo- ooa oob ooh ooi oon ooo oos oot os- osa osb osh osi osn oso oss ost ot- ota otb oth oti otn oto ots ott saa sab sah sai san sao sas sat sba sbb sbh sbi sbn sbo sbs sbt sh- sha shb shh shi shn sho shs sht sia sib sih sii sin sio sis sit sna snb sni snn sno sns snt soa sob soh soi son soo sos sot ss- ssa ssb ssh ssi ssn sso sss sst sta stb sth sti stn sto sts stt taa tab tah tai tan tao tas tat tba tbb tbh tbi tbn tbo tbs tbt th- tha thb thh thi thn tho ths tht tia tib tih tii tin tio tis tit tna tnb tnh tni tnn tno tns tnt to- toa tob toh toi ton too tos tot tsa tsb tsh tsi tsn tso tss tst tta ttb tth tti ttn tto tts ttt