-th a-a a-b a-i a-t aaa aab aah aai aao aap aat ab- aba abb abh abi abo abp abt aha ahb ahh ahi aho ahp aht ai- aia aib aih aii aio aip ait aoa aob aoh aoi aoo aop aot ap- apa apb aph api apo app apt at- ata atb ath ati ato atp att b-p baa bab bah bai bao bap bat bba bbb bbh bbi bbo bbp bbt bha bhb bhh bhi bho bhp bht bi- bia bib bih bii bio bip bit boa bob boh boi boo bop bot bpa bpb bph bpi bpo bpp bpt bta btb bth bti bto btp btt h-i haa hab hah hai hao hap hat hba hbb hbh hbi hbo hbp hbt hha hhb hhh hhi hho hhp hht hia hib hih hii hio hip hit hoa hob hoh hoi hoo hop hot hpa hpb hph hpi hpo hpp hpt hta htb hth hti hto htp htt ia- iaa iab iah iai iao iap iat iba ibb ibh ibi ibo ibp ibt iha ihb ihh ihi iho ihp iht iia iib iih iii iio iip iit io- ioa iob ioh ioi ioo iop iot ipa ipb ipi ipo ipp ipt ita itb ith iti ito itp itt o-i oaa oab oah oai oao oap oat ob- oba obb obh obi obo obp obt oha ohh ohi oho ohp oht oia oib oii oio oip oit oo- ooa oob ooh ooi ooo oop oot op- opa opb oph opi opo opp opt ot- ota otb oth oti oto otp ott p-p paa pab pah pai pao pap pat pba pbb pbi pbo pbp pbt pha phb phi pho php pht pia pib pih pii pio pip pit poa pob poh poi poo pop pot ppa ppb pph ppi ppo ppp ppt pt- pta ptb pth pti pto ptp ptt taa tab tah tai tao tap tat tba tbb tbh tbi tbo tbp tbt th- tha thb thh thi tho thp tht tia tib tih tii tio tip tit to- toa tob toh toi too top tot tpa tpb tph tpi tpo tpp tpt tta ttb tth tti tto ttp ttt