-al -ol a-a a-c a-t aaa aac aaf aak aal aao aar aat ac- aca acc acf ack acl aco acr act af- afa afc aff afk afl afo afr aft aka akc akk akl ako akr al- ala alc alf alk all alo alr alt aoa aoc aof aok aol aoo aor aot ar- ara arc arf ark arl aro arr art at- ata atc atf atl ato atr att c-- caa cac caf cak cal cao car cat cca ccc ccf cck ccl cco ccr cct cfa cfc cff cfk cfl cfo cfr cft cka ckc cko ckt cl- cla clc clf clk cll clo clr clt co- coa coc cof cok col coo cor cot cra crc crf crk crl cro crr crt cta ctc ctf ctk ctl cto ctr ctt faa fac faf fak fal fao far fat fca fcc fcf fck fcl fco fcr fct ffa ffc fff ffk ffl ffo ffr fft fka fkc fkf fkk fkl fkt fla flc flf fll flo flr flt foa foc fof fok fol foo for fot fra frc frf frk frl fro frr frt fta ftc ftf ftk ftl fto ftr ftt k-t ka- kaa kac kaf kak kal kao kar kat kca kcc kck kcl kcr kct kfa kfc kff kfo kkc kkk kkl kkr kkt kl- kla klc klf klo klr klt koa koc kof kok kol koo kor kot kra krc krf krk krl kro krr krt kta ktc ktf ktk ktl kto ktr ktt la- laa lac laf lak lal lao lar lat lca lcc lcf lck lcl lco lcr lct lfa lfc lff lfk lfl lfo lfr lft lka lkl lkr lkt lla llc llf llk lll llo llr llt loa loc lof lok lol loo lor lot lra lrc lrf lrk lro lrr lrt lta ltc ltf ltk ltl lto ltr ltt oaa oac oaf oak oal oao oar oat oc- oca occ ocf ock ocl oco ocr oct of- ofa ofc off ofl ofo ofr oft oka okc okk okl oko okr ola olc olf olk oll olo olt oo- ooa ooc oof ook ool ooo oor oot or- ora orc orf ork orl oro orr ort ot- ota otc otf otk otl oto otr ott ra- raa rac raf rak ral rao rar rat rca rcc rcf rcl rco rcr rct rfa rfc rff rfk rfl rfo rfr rft rkc rkf rkk rko rkt rla rlc rlf rll rlo rlr rlt roa roc rof rok rol roo ror rot rra rrc rrf rrk rrl rrr rrt rta rtc rtf rtk rtl rto rtr rtt taa tac taf tak tal tao tar tat tca tcc tcf tck tcl tco tcr tct tfa tfc tff tfk tfl tfo tfr tft tka tkc tkk tkl tko tkr tkt tla tlc tlf tlk tll tlo tlr tlt to- toa toc tof tok tol too tor tot tra trc trf trk trl tro trr trt tta ttc ttf ttk ttl tto ttr ttt