-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aam aar aat aav ab- aba abb abc abe abi abm abr abt abv ac- aca acb acc ace aci acm acr act acv aea aeb aec aee aei aem aer aet aev ai- aia aib aic aie aii aim air ait aiv ama amb amc ame ami amm amr amt amv ar- ara arb arc are ari arm arr art arv at- ata atb atc ate ati atm atr att atv av- ava avb avc ave avi avm avr avt baa bab bac bae bai bam bar bat bav bba bbb bbc bbe bbi bbm bbr bbt bca bcb bcc bce bci bcm bcr bct bcv be- bea beb bec bee bei bem ber bet bev bi- bia bib bic bie bii bim bir bit biv bma bmb bmc bme bmi bmm bmr bmt bmv bra brb bre bri brm brr brt brv bta btb btc bte bti btm btr btt btv bva bvb bvc bve bvi bvm bvr bvt bvv c-- caa cab cac cae cai cam car cat cav cba cbb cbc cbe cbi cbm cbr cbt cbv cca ccb ccc cce cci ccm ccr cct ccv ce- cea ceb cec cee cei cem cer cet cev ci- cia cib cic cie cii cim cir cit civ cma cmb cmc cme cmi cmm cmr cmt cmv cra crb crc cre cri crm crr crt crv cta ctb ctc cte cti ctm ctr ctt ctv cva cvb cvc cve cvi cvm cvr cvt cvv eaa eab eac eae eai eam ear eat eav eba ebb ebc ebe ebi ebm ebr ebt ebv ec- eca ecb ecc ece eci ecm ecr ect ecv eea eeb eec eee eem eer eet eev eia eib eic eie eii eim eir eit eiv em- ema emb emc eme emi emm emr emt emv era erb erc ere eri erm err ert erv eta etb etc ete eti etm etr ett etv eva evb evc eve evi evm evr evt evv i-v ia- iaa iab iac iae iai iam iar iat iav iba ibb ibc ibe ibi ibm ibr ibt ibv ica icb icc ice ici icm icr ict icv ie- iea iec iee iei iem ier iet iev iia iib iic iie iii iim iir iit im- ima imb imc ime imi imm imt imv ir- ira irb irc ire iri irm irr irt irv ita itb itc ite iti itm itt itv iva ivb ivc ive ivi ivr ivt ivv m-r m-v maa mab mac mae mai mam mar mat mav mba mbb mbc mbe mbi mbm mbr mbt mbv mc- mca mcb mcc mce mci mcm mcr mct mcv mea meb mec mee mei mem mer met mev mi- mia mib mic mie mii mim mir mit miv mma mmb mmc mme mmi mmm mmr mmt mmv mra mrb mrc mre mri mrm mrr mrt mrv mta mtb mtc mte mti mtm mtr mtt mtv mva mvb mvc mve mvi mvm mvr mvt mvv ra- raa rab rac rae rai ram rar rat rav rba rbb rbc rbe rbi rbm rbr rbt rca rcb rcc rce rci rcm rcr rct rcv re- rea reb rec ree rei rem rer ret rev ria rib ric rie rii rim rir rit riv rma rmb rmc rme rmi rmm rmr rmt rmv rra rrb rrc rri rrm rrr rrt rta rtb rtc rte rti rtm rtr rtt rtv rva rvb rvc rve rvi rvm rvr rvt rvv taa tab tac tae tai tam tar tat tav tba tbb tbc tbe tbi tbm tbr tbt tbv tca tcb tcc tce tci tcm tcr tct tcv te- tea teb tec tee tei tem ter tet tev tia tib tic tie tii tim tir tit tiv tma tmb tmc tme tmi tmm tmr tmt tmv tra trb trc tre tri trm trr trt trv tta ttb ttc tte tti ttm ttr ttt ttv tva tvb tvc tve tvi tvm tvr tvt v-a v-e vaa vab vac vae vai vam var vat vav vba vbc vbi vbm vbr vbv vca vcc vce vci vcm vcr vct vea veb vec vee vei vem ver vet vi- via vib vic vie vii vim vir vit viv vm- vma vmc vmi vmm vmr vmt vra vrb vrc vre vri vrm vrr vrt vta vtb vtc vte vti vtm vtr vtt vtv vva vvb vvc vvi vvm vvr vvt vvv