-er a-a a-c a-t aaa aac aad aae aar aat aau aav ac- aca acc acd ace acr act acu acv ad- ada adc add ade adr adt adu adv aea aec aed aee aer aet aeu aev ar- ara arc ard are arr art aru arv at- ata atc atd ate atr att atu atv au- aua auc aud aue aur aut auv av- ava avc avd ave avr avt avu c-- caa cac cad cae car cat cau cav cca ccc ccd cce ccr cct ccu ccv cda cdc cdd cde cdr cdt cdu cdv ce- cea cec ced cee cer cet ceu cev cra crc crd cre crr crt cru crv cta ctc ctd cte ctr ctt ctu ctv cua cuc cud cue cur cut cuu cuv cva cvc cvd cve cvr cvt cvu cvv daa dac dad dae dar dat dau dav dca dcc dcd dce dcr dct dcu dcv dda ddc ddd dde ddr ddt ddu de- dea dec ded dee der det deu dev dra drc drd dre drr drt dru drv dta dtc dtd dte dtr dtt dtu dtv dua duc dud due dur dut duv dva dvc dvd dve dvr dvt dvu eaa eac ead eae ear eat eau eav ec- eca ecc ecd ece ecr ect ecu ecv ed- eda edc edd ede edr edt edu eea eec eed eee eer eet eev era erc erd ere err ert eru erv eta etc etd ete etr ett etu etv eu- eua euc eud eue eur eut euv eva evc evd eve evr evt evv ra- raa rac rad rae rar rat rau rav rca rcc rcd rce rcr rct rcu rcv rda rdc rdd rde rdr rdt rdu rdv re- rea rec red ree rer ret reu rev rra rrc rrd rrr rrt rru rta rtc rtd rte rtr rtt rtu rtv rua ruc rud rue rur rut ruu ruv rva rvc rvd rve rvr rvt rvu rvv taa tac tad tae tar tat tau tav tca tcc tcd tce tcr tct tcu tcv tda tdc tdd tde tdr tdt tdu tdv te- tea tec ted tee ter tet teu tev tra trc trd tre trr trt tru trv tta ttc ttd tte ttr ttt ttu ttv tua tuc tud tue tur tut tuu tuv tva tvc tvd tve tvr tvt tvu ua- uaa uac uad uae uar uat uau uav uca ucc ucd uce ucr uct ucu ucv uda udc udd ude udr udt udu udv uea uec ued uee uer uet ur- ura urc urd ure urr urt uru uta utc utd ute utr utt utu utv uua uuc uue uur uut uuu uva uvc uve uvu uvv v-a v-e vaa vac vad vae var vat vau vav vca vcc vcd vce vcr vct vcu vdc vdd vde vdr vdt vdu vdv vea vec ved vee ver vet veu vra vrc vrd vre vrr vrt vru vta vtc vte vtr vtt vtu vtv vue vur vut vuv vva vvc vvr vvt vvv