-er a-a a-c a-t aaa aac aad aae aao aar aat aau aav ac- aca acc acd ace aco acr act acu acv ad- ada adc add ade ado adr adt adu adv aea aec aed aee aeo aer aet aeu aev aoa aoc aod aoe aoo aor aot aou aov ar- ara arc ard are aro arr art aru arv at- ata atc atd ate ato atr att atu atv au- aua auc aud aue auo aur aut auv av- ava avc avd ave avo avr avt avu c-- caa cac cad cae cao car cat cau cav cca ccc ccd cce cco ccr cct ccu ccv cda cdc cdd cde cdo cdr cdt cdu cdv ce- cea cec ced cee ceo cer cet ceu cev co- coa coc cod coe coo cor cot cou cov cra crc crd cre cro crr crt cru crv cta ctc ctd cte cto ctr ctt ctu ctv cua cuc cud cue cuo cur cut cuu cuv cva cvc cvd cve cvo cvr cvt cvu cvv daa dac dad dae dao dar dat dau dav dca dcc dcd dce dco dcr dct dcu dcv dda ddc ddd dde ddo ddr ddt ddu de- dea dec ded dee deo der det deu dev doa doc dod doe doo dor dot dou dov dra drc drd dre dro drr drt dru drv dta dtc dtd dte dto dtr dtt dtu dtv dua duc dud due duo dur dut duv dva dvc dvd dve dvr dvt dvu eaa eac ead eae eao ear eat eau eav ec- eca ecc ecd ece eco ecr ect ecu ecv ed- eda edc edd ede edo edr edt edu eea eec eed eee eeo eer eet eev eo- eoa eoc eod eoe eoo eor eot eou era erc erd ere ero err ert eru erv eta etc etd ete eto etr ett etu etv eu- eua euc eud eue eur eut euv eva evc evd eve evo evr evt evv oaa oac oad oae oao oar oat oau oav oc- oca occ ocd oco ocr oct ocu ocv oda odc odd ode odo odr odt odu odv oea oec oed oee oeo oer oet oo- ooa ooc ood ooo oor oot oov or- ora orc ord ore oro orr ort oru orv ot- ota otc otd ote oto otr ott otu otv ou- oua ouc oud oue ouo our out ov- ova ovc ovd ove ovo ovv ra- raa rac rad rae rao rar rat rau rav rca rcc rcd rce rco rcr rct rcu rcv rda rdc rdd rde rdo rdr rdt rdu rdv re- rea rec red ree reo rer ret reu rev roa roc rod roe roo ror rot rou rov rra rrc rrd rrr rrt rru rta rtc rtd rte rto rtr rtt rtu rtv rua ruc rud rue ruo rur rut ruu ruv rva rvc rvd rve rvo rvr rvt rvu rvv taa tac tad tae tao tar tat tau tav tca tcc tcd tce tco tcr tct tcu tcv tda tdc tdd tde tdo tdr tdt tdu tdv te- tea tec ted tee teo ter tet teu tev to- toa toc tod toe too tor tot tou tov tra trc trd tre tro trr trt tru trv tta ttc ttd tte tto ttr ttt ttu ttv tua tuc tud tue tuo tur tut tuu tuv tva tvc tvd tve tvo tvr tvt tvu ua- uaa uac uad uae uao uar uat uau uav uca ucc ucd uce uco ucr uct ucu ucv uda udc udd ude udo udr udt udu udv uea uec ued uee uer uet uoa uoc uod uoe uoo uor uot ur- ura urc urd ure uro urr urt uru uta utc utd ute uto utr utt utu utv uua uuc uue uur uut uuu uva uvc uve uvo uvu uvv v-a v-e vaa vac vad vae vao var vat vau vav vca vcc vcd vce vco vcr vct vcu vdc vdd vde vdo vdr vdt vdu vdv vea vec ved vee veo ver vet veu voa voc vod voe voo vor vot vou vov vra vrc vrd vre vrr vrt vru vta vtc vte vto vtr vtt vtu vtv vue vur vut vuv vva vvc vvo vvr vvt vvv