-al -ic -ol a-a a-b a-c a-i a-t aaa aab aac aai aak aal aao aar aat ab- aba abb abc abi abk abl abo abr abt ac- aca acb acc aci ack acl aco acr act ai- aia aib aic aii aik ail aio air ait aka akb akc aki akk akl ako akr al- ala alb alc ali alk all alo alr alt aoa aob aoc aoi aok aol aoo aor aot ar- ara arb arc ari ark arl aro arr art at- ata atb atc ati atl ato atr att baa bab bac bai bak bal bao bar bat bba bbb bbc bbi bbk bbl bbo bbr bbt bca bcb bcc bci bck bcl bco bcr bct bi- bia bib bic bii bik bil bio bir bit bka bkb bkc bkk bkl bko bkr bkt bla blb blc bli blk bll blo blr blt boa bob boc boi bok bol boo bor bot bra brb bri brk brl bro brr brt bta btb btc bti btk btl bto btr btt c-- caa cab cac cai cak cal cao car cat cba cbb cbc cbi cbk cbl cbo cbr cbt cca ccb ccc cci cck ccl cco ccr cct ci- cia cib cic cii cik cil cio cir cit cka ckb ckc cki cko ckt cl- cla clb clc cli clk cll clo clr clt co- coa cob coc coi cok col coo cor cot cra crb crc cri crk crl cro crr crt cta ctb ctc cti ctk ctl cto ctr ctt ia- iaa iab iac iai ial iao iar iat iba ibb ibc ibi ibk ibl ibo ibr ibt ica icb icc ici ick icl ico icr ict iia iib iic iii iil iio iir iit ika ikb ikc iki ikk ikl iko ikr ikt il- ila ilb ilc ili ilk ill ilo ilr ilt io- ioa iob ioc ioi iol ioo ior iot ir- ira irb irc iri irk irl iro irr irt ita itb itc iti itk itl ito itt k-t ka- kaa kab kac kai kak kal kao kar kat kba kbb kbc kbi kbk kbl kbo kbr kca kcb kcc kci kck kcl kcr kct kia kib kic kii kik kil kio kir kit kkb kkc kki kkk kkl kkr kkt kl- kla klb klc kli klo klr klt koa kob koc koi kok kol koo kor kot kra krc kri krk krl kro krr krt kta ktb ktc ktk ktl kto ktr ktt la- laa lab lac lai lak lal lao lar lat lba lbb lbc lbi lbk lbl lbo lbr lbt lca lcb lcc lci lck lcl lco lcr lct lia lib lic lii lik lil lio lir lit lka lkb lkl lkr lkt lla llb llc lli llk lll llo llr llt loa lob loc loi lok lol loo lor lot lra lrb lrc lri lrk lro lrr lrt lta ltb ltc lti ltk ltl lto ltr ltt o-i oaa oab oac oai oak oal oao oar oat ob- oba obb obc obi obk obl obo obr obt oc- oca ocb occ oci ock ocl oco ocr oct oia oib oic oii oik oil oio oir oit oka okb okc oki okk okl oko okr ola olb olc oli olk oll olo olt oo- ooa oob ooc ooi ook ool ooo oor oot or- ora orb orc ori ork orl oro orr ort ot- ota otb otc oti otk otl oto otr ott ra- raa rab rac rai rak ral rao rar rat rba rbb rbc rbi rbk rbl rbo rbr rbt rca rcb rcc rci rcl rco rcr rct ria rib ric rii rik ril rio rir rit rkb rkc rkk rko rkt rla rlc rli rll rlo rlr rlt roa rob roc roi rok rol roo ror rot rra rrb rrc rri rrk rrl rrr rrt rta rtb rtc rti rtk rtl rto rtr rtt taa tab tac tai tak tal tao tar tat tba tbb tbc tbi tbk tbl tbo tbr tbt tca tcb tcc tci tck tcl tco tcr tct tia tib tic tii tik til tio tir tit tka tkb tkc tkk tkl tko tkr tkt tla tlc tli tlk tll tlo tlr tlt to- toa tob toc toi tok tol too tor tot tra trb trc tri trk trl tro trr trt tta ttb ttc tti ttk ttl tto ttr ttt