-er a-a a-c a-t aaa aac aae aam aar aat aav ac- aca acc ace acm acr act acv aea aec aee aem aer aet aev ama amc ame amm amr amt amv ar- ara arc are arm arr art arv at- ata atc ate atm atr att atv av- ava avc ave avm avr avt c-- caa cac cae cam car cat cav cca ccc cce ccm ccr cct ccv ce- cea cec cee cem cer cet cev cma cmc cme cmm cmr cmt cmv cra crc cre crm crr crt crv cta ctc cte ctm ctr ctt ctv cva cvc cve cvm cvr cvt cvv eaa eac eae eam ear eat eav ec- eca ecc ece ecm ecr ect ecv eea eec eee eem eer eet eev em- ema emc eme emm emr emt emv era erc ere erm err ert erv eta etc ete etm etr ett etv eva evc eve evm evr evt evv m-r m-v maa mac mae mam mar mat mav mc- mca mcc mce mcm mcr mct mcv mea mec mee mem mer met mev mma mmc mme mmm mmr mmt mmv mra mrc mre mrm mrr mrt mrv mta mtc mte mtm mtr mtt mtv mva mvc mve mvm mvr mvt mvv ra- raa rac rae ram rar rat rav rca rcc rce rcm rcr rct rcv re- rea rec ree rem rer ret rev rma rmc rme rmm rmr rmt rmv rra rrc rrm rrr rrt rta rtc rte rtm rtr rtt rtv rva rvc rve rvm rvr rvt rvv taa tac tae tam tar tat tav tca tcc tce tcm tcr tct tcv te- tea tec tee tem ter tet tev tma tmc tme tmm tmr tmt tmv tra trc tre trm trr trt trv tta ttc tte ttm ttr ttt ttv tva tvc tve tvm tvr tvt v-a v-e vaa vac vae vam var vat vav vca vcc vce vcm vcr vct vea vec vee vem ver vet vm- vma vmc vmm vmr vmt vra vrc vre vrm vrr vrt vta vtc vte vtm vtr vtt vtv vva vvc vvm vvr vvt vvv