-th a-a a-b a-i a-t aaa aab aah aai aan aao aar aat ab- aba abb abh abi abn abo abr abt aha ahb ahh ahi ahn aho ahr aht ai- aia aib aih aii ain aio air ait an- ana anb anh ani ann ano anr ant aoa aob aoh aoi aon aoo aor aot ar- ara arb arh ari arn aro arr art at- ata atb ath ati atn ato atr att baa bab bah bai ban bao bar bat bba bbb bbh bbi bbn bbo bbr bbt bha bhb bhh bhi bho bhr bht bi- bia bib bih bii bin bio bir bit bna bnb bni bnn bno bnr bnt boa bob boh boi bon boo bor bot bra brb brh bri brn bro brr brt bta btb bth bti btn bto btr btt h-i haa hab hah hai han hao har hat hba hbb hbh hbi hbn hbo hbr hbt hha hhb hhh hhi hhn hho hhr hht hia hib hih hii hin hio hir hit hna hnb hnh hnn hno hnt hoa hob hoh hoi hon hoo hor hot hr- hra hrb hrh hri hrn hro hrr hrt hta htb hth hti htn hto htr htt ia- iaa iab iah iai ian iao iar iat iba ibb ibh ibi ibn ibo ibr ibt iha ihb ihh ihi ihn iho ihr iht iia iib iih iii iin iio iir iit in- ina inb inh ini inn ino inr int io- ioa iob ioh ioi ion ioo ior iot ir- ira irb iri irn iro irr irt ita itb ith iti itn ito itt n-i naa nab nah nai nan nao nar nat nba nbb nbi nbn nbo nbr nbt nha nhb nhh nhi nhn nhr nht nia nib nih nii nin nio nir nit nna nnb nnh nni nnn nno nnt no- noa nob noh noi non noo nor not nra nrb nri nrn nro nrr nrt nta ntb nth nti ntn nto ntr ntt o-i oaa oab oah oai oan oao oar oat ob- oba obb obh obi obn obo obr obt oha ohh ohi ohn oho ohr oht oia oib oii oin oio oir oit on- ona onb onh oni onn ono onr ont oo- ooa oob ooh ooi oon ooo oor oot or- ora orb orh ori orn oro orr ort ot- ota otb oth oti otn oto otr ott ra- raa rab rah rai ran rao rar rat rba rbb rbh rbi rbn rbo rbr rbt rh- rha rhb rhh rhi rhn rho rhr rht ria rib rih rii rin rio rir rit rna rnb rnh rni rnn rno rnr rnt roa rob roh roi ron roo ror rot rra rrb rrh rri rrn rrr rrt rta rtb rti rtn rto rtr rtt taa tab tah tai tan tao tar tat tba tbb tbh tbi tbn tbo tbr tbt th- tha thb thh thi thn tho thr tht tia tib tih tii tin tio tir tit tna tnb tnh tni tnn tno tnr tnt to- toa tob toh toi ton too tor tot tra trb trh tri trn tro trr trt tta ttb tth tti ttn tto ttr ttt