-th a-a a-b a-i a-t aaa aab aah aai aak aao aar aat ab- aba abb abh abi abk abo abr abt aha ahb ahh ahi ahk aho ahr aht ai- aia aib aih aii aik aio air ait aka akb akh aki akk ako akr aoa aob aoh aoi aok aoo aor aot ar- ara arb arh ari ark aro arr art at- ata atb ath ati ato atr att baa bab bah bai bak bao bar bat bba bbb bbh bbi bbk bbo bbr bbt bha bhb bhh bhi bhk bho bhr bht bi- bia bib bih bii bik bio bir bit bka bkb bkk bko bkr bkt boa bob boh boi bok boo bor bot bra brb brh bri brk bro brr brt bta btb bth bti btk bto btr btt h-i haa hab hah hai hak hao har hat hba hbb hbh hbi hbk hbo hbr hbt hha hhb hhh hhi hhk hho hhr hht hia hib hih hii hik hio hir hit hka hkb hkh hki hkk hko hkr hkt hoa hob hoh hoi hok hoo hor hot hr- hra hrb hrh hri hrk hro hrr hrt hta htb hth hti htk hto htr htt ia- iaa iab iah iai iao iar iat iba ibb ibh ibi ibk ibo ibr ibt iha ihb ihh ihi ihk iho ihr iht iia iib iih iii iio iir iit ika ikb iki ikk iko ikr ikt io- ioa iob ioh ioi ioo ior iot ir- ira irb iri irk iro irr irt ita itb ith iti itk ito itt k-t ka- kaa kab kah kai kak kao kar kat kba kbb kbh kbi kbk kbo kbr kha khh khi khk kho khr kia kib kih kii kik kio kir kit kkb kkh kki kkk kkr kkt koa kob koh koi kok koo kor kot kra kri krk kro krr krt kta ktb kth ktk kto ktr ktt o-i oaa oab oah oai oak oao oar oat ob- oba obb obh obi obk obo obr obt oha ohh ohi oho ohr oht oia oib oii oik oio oir oit oka okb oki okk oko okr oo- ooa oob ooh ooi ook ooo oor oot or- ora orb orh ori ork oro orr ort ot- ota otb oth oti otk oto otr ott ra- raa rab rah rai rak rao rar rat rba rbb rbh rbi rbk rbo rbr rbt rh- rha rhb rhh rhi rho rhr rht ria rib rih rii rik rio rir rit rkb rkk rko rkt roa rob roh roi rok roo ror rot rra rrb rrh rri rrk rrr rrt rta rtb rti rtk rto rtr rtt taa tab tah tai tak tao tar tat tba tbb tbh tbi tbk tbo tbr tbt th- tha thb thh thi thk tho thr tht tia tib tih tii tik tio tir tit tka tkb tkk tko tkr tkt to- toa tob toh toi tok too tor tot tra trb trh tri trk tro trr trt tta ttb tth tti ttk tto ttr ttt