a-a a-c a-t aaa aac aan aao aar aat aau aax ac- aca acc acn aco acr act acu acx an- ana anc ann ano anr ant anu anx aoa aoc aon aoo aor aot aou aox ar- ara arc arn aro arr art aru arx at- ata atc atn ato atr att atu atx au- aua auc aun auo aur aut aux ax- axa axn axo axr axt axx c-- caa cac can cao car cat cau cax cca ccc ccn cco ccr cct ccu ccx cn- cna cnc cnn cno cnr cnt cnu cnx co- coa coc con coo cor cot cou cox cra crc crn cro crr crt cru crx cta ctc ctn cto ctr ctt ctu ctx cua cuc cun cuo cur cut cuu cxc cxo cxr cxt cxx naa nac nan nao nar nat nau nax nca ncc ncn nco ncr nct ncu ncx nna nnc nnn nno nnt nnu no- noa noc non noo nor not nou nox nra nrc nrn nro nrr nrt nru nrx nta ntc ntn nto ntr ntt ntu ntx nua nuc nun nuo nur nut nuu nux nxc nxt oaa oac oan oao oar oat oau oax oc- oca occ ocn oco ocr oct ocu ocx on- ona onc onn ono onr ont onu onx oo- ooa ooc oon ooo oor oot oox or- ora orc orn oro orr ort oru orx ot- ota otc otn oto otr ott otu ou- oua ouc oun ouo our out ox- oxa oxc oxn oxo oxt oxx ra- raa rac ran rao rar rat rau rax rca rcc rcn rco rcr rct rcu rcx rna rnc rnn rno rnr rnt rnu roa roc ron roo ror rot rou rox rra rrc rrn rrr rrt rru rta rtc rtn rto rtr rtt rtu rtx rua ruc run ruo rur rut ruu rux rxr t-x taa tac tan tao tar tat tau tax tca tcc tcn tco tcr tct tcu tcx tna tnc tnn tno tnr tnt tnx to- toa toc ton too tor tot tou tox tra trc trn tro trr trt tru trx tta ttc ttn tto ttr ttt ttu ttx tua tuc tun tuo tur tut tuu tux txn txt txu ua- uaa uac uan uao uar uat uau uca ucc ucn uco ucr uct ucu un- una unc unn uno unr unt unu unx uoa uoc uon uoo uor uot uox ur- ura urc urn uro urr urt uru urx uta utc utn uto utr utt utu utx uua uuc uun uur uut uuu uxc uxo uxr uxt uxu xaa xac xan xar xat xau xcr xcx xna xnc xno xnu xoa xoc xon xoo xor xot xox xrc xrt xrx xtc xtr xtx xun xxo xxx