-al -ol -th a-a a-b a-c a-t aaa aab aac aah aak aal aao aar aat ab- aba abb abc abh abk abl abo abr abt ac- aca acb acc ach ack acl aco acr act aha ahb ahc ahh ahk ahl aho ahr aht aka akb akc akh akk akl ako akr al- ala alb alc alh alk all alo alr alt aoa aob aoc aoh aok aol aoo aor aot ar- ara arb arc arh ark arl aro arr art at- ata atb atc ath atl ato atr att baa bab bac bah bak bal bao bar bat bba bbb bbc bbh bbk bbl bbo bbr bbt bca bcb bcc bch bck bcl bco bcr bct bha bhb bhc bhh bhk bhl bho bhr bht bka bkb bkc bkk bkl bko bkr bkt bla blb blc blh blk bll blo blr blt boa bob boc boh bok bol boo bor bot bra brb brh brk brl bro brr brt bta btb btc bth btk btl bto btr btt c-- caa cab cac cah cak cal cao car cat cba cbb cbc cbh cbk cbl cbo cbr cbt cca ccb ccc cch cck ccl cco ccr cct ch- cha chb chc chh chk chl cho chr cht cka ckb ckc ckh cko ckt cl- cla clb clc clh clk cll clo clr clt co- coa cob coc coh cok col coo cor cot cra crb crc crh crk crl cro crr crt cta ctb ctc cth ctk ctl cto ctr ctt haa hab hac hah hak hal hao har hat hba hbb hbc hbh hbk hbl hbo hbr hbt hca hcb hcc hch hck hcl hco hcr hct hha hhb hhc hhh hhk hhl hho hhr hht hka hkb hkh hkk hkl hko hkr hkt hla hlb hlc hlh hll hlo hlr hlt hoa hob hoc hoh hok hol hoo hor hot hr- hra hrb hrc hrh hrk hrl hro hrr hrt hta htb htc hth htk htl hto htr htt k-t ka- kaa kab kac kah kak kal kao kar kat kba kbb kbc kbh kbk kbl kbo kbr kca kcb kcc kch kck kcl kcr kct kha khh khk kho khr kkb kkc kkh kkk kkl kkr kkt kl- kla klb klc klh klo klr klt koa kob koc koh kok kol koo kor kot kra krc krk krl kro krr krt kta ktb ktc kth ktk ktl kto ktr ktt la- laa lab lac lah lak lal lao lar lat lba lbb lbc lbh lbk lbl lbo lbr lbt lca lcb lcc lch lck lcl lco lcr lct lha lhb lhc lhh lhk lho lhr lht lka lkb lkh lkl lkr lkt lla llb llc llk lll llo llr llt loa lob loc loh lok lol loo lor lot lra lrb lrc lrh lrk lro lrr lrt lta ltb ltc lth ltk ltl lto ltr ltt oaa oab oac oah oak oal oao oar oat ob- oba obb obc obh obk obl obo obr obt oc- oca ocb occ och ock ocl oco ocr oct oha ohc ohh ohl oho ohr oht oka okb okc okk okl oko okr ola olb olc olk oll olo olt oo- ooa oob ooc ooh ook ool ooo oor oot or- ora orb orc orh ork orl oro orr ort ot- ota otb otc oth otk otl oto otr ott ra- raa rab rac rah rak ral rao rar rat rba rbb rbc rbh rbk rbl rbo rbr rbt rca rcb rcc rch rcl rco rcr rct rh- rha rhb rhc rhh rhl rho rhr rht rkb rkc rkk rko rkt rla rlc rlh rll rlo rlr rlt roa rob roc roh rok rol roo ror rot rra rrb rrc rrh rrk rrl rrr rrt rta rtb rtc rtk rtl rto rtr rtt taa tab tac tah tak tal tao tar tat tba tbb tbc tbh tbk tbl tbo tbr tbt tca tcb tcc tch tck tcl tco tcr tct th- tha thb thc thh thk thl tho thr tht tka tkb tkc tkk tkl tko tkr tkt tla tlc tlh tlk tll tlo tlr tlt to- toa tob toc toh tok tol too tor tot tra trb trc trh trk trl tro trr trt tta ttb ttc tth ttk ttl tto ttr ttt