a-a a-c a-t aaa aac aad aak aan aao aar aat aau ac- aca acc acd ack acn aco acr act acu ad- ada adc add adk adn ado adr adt adu aka akc akd akk akn ako akr aku an- ana anc and ank ann ano anr ant anu aoa aoc aod aok aon aoo aor aot aou ar- ara arc ard ark arn aro arr art aru at- ata atc atd atn ato atr att atu au- aua auc aud auk aun auo aur aut c-- caa cac cad cak can cao car cat cau cca ccc ccd cck ccn cco ccr cct ccu cda cdc cdd cdk cdn cdo cdr cdt cdu cka ckc ckd cko ckt cn- cna cnc cnd cnn cno cnr cnt cnu co- coa coc cod cok con coo cor cot cou cra crc crd crk crn cro crr crt cru cta ctc ctd ctk ctn cto ctr ctt ctu cua cuc cud cuk cun cuo cur cut cuu daa dac dad dak dan dao dar dat dau dca dcc dcd dck dcn dco dcr dct dcu dda ddc ddd ddk ddn ddo ddr ddt ddu dka dkc dkk dko dkr dkt dku dna dnc dnd dnk dnn dno dnr dnt doa doc dod dok don doo dor dot dou dra drc drd drk drn dro drr drt dru dta dtc dtd dtk dtn dto dtr dtt dtu dua duc dud duk dun duo dur dut k-t ka- kaa kac kad kak kan kao kar kat kau kca kcc kcd kck kcn kcr kct kcu kda kdc kdk kdo kdr kdt kdu kkc kkk kkn kkr kkt kku kn- kna knc knd knk knn kno knr knt knu koa koc kod kok kon koo kor kot kou kra krc krd krk krn kro krr krt kru kta ktc ktk ktn kto ktr ktt ktu kuc kud kuk kun kur kut kuu naa nac nad nak nan nao nar nat nau nca ncc ncd nck ncn nco ncr nct ncu nda ndc ndd ndk ndn ndo ndr ndt ndu nka nkc nkk nkn nko nkr nkt nku nna nnc nnk nnn nno nnt nnu no- noa noc nod nok non noo nor not nou nra nrc nrd nrk nrn nro nrr nrt nru nta ntc ntd ntk ntn nto ntr ntt ntu nua nuc nud nuk nun nuo nur nut nuu oaa oac oad oak oan oao oar oat oau oc- oca occ ocd ock ocn oco ocr oct ocu oda odc odd odn odo odr odt odu oka okc okd okk oko okr oku on- ona onc ond onk onn ono onr ont onu oo- ooa ooc ood ook oon ooo oor oot or- ora orc ord ork orn oro orr ort oru ot- ota otc otd otk otn oto otr ott otu ou- oua ouc oud ouk oun ouo our out ra- raa rac rad rak ran rao rar rat rau rca rcc rcd rcn rco rcr rct rcu rda rdc rdd rdn rdo rdr rdt rdu rkc rkk rko rkt rku rna rnc rnd rnn rno rnr rnt rnu roa roc rod rok ron roo ror rot rou rra rrc rrd rrk rrn rrr rrt rru rta rtc rtd rtk rtn rto rtr rtt rtu rua ruc rud ruk run ruo rur rut ruu taa tac tad tak tan tao tar tat tau tca tcc tcd tck tcn tco tcr tct tcu tda tdc tdd tdk tdn tdo tdr tdt tdu tka tkc tkk tko tkr tkt tna tnc tnd tnk tnn tno tnr tnt to- toa toc tod tok ton too tor tot tou tra trc trd trk trn tro trr trt tru tta ttc ttd ttk ttn tto ttr ttt ttu tua tuc tud tuk tun tuo tur tut tuu ua- uaa uac uad uak uan uao uar uat uau uca ucc ucd uck ucn uco ucr uct ucu uda udc udd udk udn udo udr udt udu uka ukc ukk ukn ukr uku un- una unc und unk unn uno unr unt unu uoa uoc uod uok uon uoo uor uot ur- ura urc urd urk urn uro urr urt uru uta utc utd utk utn uto utr utt utu uua uuc uun uur uut uuu