a-a a-c a-t aaa aac aaf aar aat aav ac- aca acc acf acr act acv af- afa afc aff afr aft afv ar- ara arc arf arr art arv at- ata atc atf atr att atv av- ava avc avf avr avt c-- caa cac caf car cat cav cca ccc ccf ccr cct ccv cfa cfc cff cfr cft cfv cra crc crf crr crt crv cta ctc ctf ctr ctt ctv cva cvc cvf cvr cvt cvv faa fac faf far fat fav fca fcc fcf fcr fct fcv ffa ffc fff ffr fft ffv fra frc frf frr frt fta ftc ftf ftr ftt ftv fva fvc fvt ra- raa rac raf rar rat rav rca rcc rcf rcr rct rcv rfa rfc rff rfr rft rfv rra rrc rrf rrr rrt rta rtc rtf rtr rtt rtv rva rvc rvf rvr rvt rvv taa tac taf tar tat tav tca tcc tcf tcr tct tcv tfa tfc tff tfr tft tra trc trf trr trt trv tta ttc ttf ttr ttt ttv tva tvc tvf tvr tvt v-a vaa vac var vat vav vca vcc vcf vcr vct vfa vfc vff vfr vft vfv vra vrc vrf vrr vrt vta vtc vtr vtt vtv vva vvc vvr vvt vvv