a-a a-c a-t aaa aac aan aao aar aat aav ac- aca acc acn aco acr act acv an- ana anc ann ano anr ant anv aoa aoc aon aoo aor aot aov ar- ara arc arn aro arr art arv at- ata atc atn ato atr att atv av- ava avc avn avo avr avt c-- caa cac can cao car cat cav cca ccc ccn cco ccr cct ccv cn- cna cnc cnn cno cnr cnt cnv co- coa coc con coo cor cot cov cra crc crn cro crr crt crv cta ctc ctn cto ctr ctt ctv cva cvc cvn cvo cvr cvt cvv naa nac nan nao nar nat nav nca ncc ncn nco ncr nct ncv nna nnc nnn nno nnt nnv no- noa noc non noo nor not nov nra nrc nrn nro nrr nrt nrv nta ntc ntn nto ntr ntt ntv nva nvc nvn nvt nvv oaa oac oan oao oar oat oav oc- oca occ ocn oco ocr oct ocv on- ona onc onn ono onr ont oo- ooa ooc oon ooo oor oot oov or- ora orc orn oro orr ort orv ot- ota otc otn oto otr ott otv ov- ova ovc ovo ovv ra- raa rac ran rao rar rat rav rca rcc rcn rco rcr rct rcv rna rnc rnn rno rnr rnt rnv roa roc ron roo ror rot rov rra rrc rrn rrr rrt rta rtc rtn rto rtr rtt rtv rva rvc rvn rvo rvr rvt rvv taa tac tan tao tar tat tav tca tcc tcn tco tcr tct tcv tna tnc tnn tno tnr tnt to- toa toc ton too tor tot tov tra trc trn tro trr trt trv tta ttc ttn tto ttr ttt ttv tva tvc tvn tvo tvr tvt v-a vaa vac van vao var vat vav vca vcc vcn vco vcr vct vn- vna vno vnr vnv voa voc von voo vor vot vov vra vrc vrn vrr vrt vta vtc vto vtr vtt vtv vva vvc vvo vvr vvt vvv