-er a-a a-b aaa aab aad aae aag aam aao aar aav ab- aba abb abd abe abg abm abo abr abv ad- ada adb add ade adg adm ado adr adv aea aeb aed aee aeg aem aeo aer aev ag- aga agb agd age agg agm ago agr agv ama amb amd ame amg amm amo amr amv aoa aob aod aoe aog aom aoo aor aov ar- ara arb ard are arg arm aro arr arv av- ava avb avd ave avg avm avo avr baa bab bad bae bag bam bao bar bav bba bbb bbd bbe bbg bbm bbo bbr bda bdb bdd bde bdg bdm bdo bdr bdv be- bea beb bed bee beg bem beo ber bev bga bgb bgd bge bgg bgm bgo bgr bgv bma bmb bmd bme bmg bmm bmo bmr bmv boa bob bod boe bog bom boo bor bov bra brb brd bre brg brm bro brr brv bva bvb bvd bve bvg bvm bvo bvr bvv daa dab dad dae dag dam dao dar dav dba dbb dbd dbe dbg dbm dbo dbr dbv dda ddb ddd dde ddg ddm ddo ddr de- dea deb ded dee deg dem deo der dev dga dgd dge dgg dgm dgr dma dmb dmd dme dmg dmm dmo dmr dmv doa dob dod doe dog dom doo dor dov dra drb drd dre drg drm dro drr drv dva dvb dvd dve dvg dvm dvr eaa eab ead eae eag eam eao ear eav eba ebb ebd ebe ebg ebm ebo ebr ebv ed- eda edb edd ede edg edm edo edr eea eeb eed eee eeg eem eeo eer eev ega egb egd ege egg egm ego egr em- ema emb emd eme emg emm emo emr emv eo- eoa eob eod eoe eog eom eoo eor era erb erd ere erg erm ero err erv eva evb evd eve evg evm evo evr evv g-d gaa gab gad gae gag gam gao gar gav gba gbd gbe gbg gbm gbo gbr gbv gda gdb gdd gde gdm gdo gdr gdv ge- gea geb ged gee geg gem geo ger gev gga ggb ggd ggg ggm ggo ggr ggv gma gmb gmd gme gmg gmm gmo gmr gmv goa gob god goe gog gom goo gor gov gra grb grd gre grg grm gro grr grv gva gvb gvd gve gvg gvm gvo gvr m-o m-r m-v maa mab mad mae mag mam mao mar mav mba mbb mbd mbe mbg mbm mbo mbr mbv mda mdb mdd mde mdg mdm mdo mdr mdv mea meb med mee meg mem meo mer mev mga mgb mgd mge mgm mgo mgr mgv mma mmb mmd mme mmg mmm mmo mmr mmv moa mob mod moe mog mom moo mor mov mra mrb mrd mre mrg mrm mro mrr mrv mva mvb mvd mve mvg mvm mvo mvr mvv oaa oab oad oae oag oam oao oar oav ob- oba obb obd obe obg obm obo obr obv oda odb odd ode odg odm odo odr odv oea oeb oed oee oeg oem oeo oer oga ogd oge ogg ogo om- oma omb omd ome omg omm omo omr omv oo- ooa oob ood oog oom ooo oor oov or- ora orb ord ore org orm oro orr orv ov- ova ovb ovd ove ovo ovv ra- raa rab rad rae rag ram rao rar rav rba rbb rbd rbe rbg rbm rbo rbr rda rdb rdd rde rdg rdm rdo rdr rdv re- rea reb red ree reg rem reo rer rev rga rgb rgd rge rgg rgo rgr rgv rma rmb rmd rme rmg rmm rmo rmr rmv roa rob rod roe rog rom roo ror rov rra rrb rrd rrg rrm rrr rva rvb rvd rve rvg rvm rvo rvr rvv v-a v-e vaa vab vad vae vag vam vao var vav vba vbd vbg vbm vbo vbr vbv vdb vdd vde vdg vdm vdo vdr vdv vea veb ved vee veg vem veo ver vga vgg vgm vgo vgr vm- vma vmd vmm vmo vmr voa vob vod voe vog vom voo vor vov vra vrb vrd vre vrg vrm vrr vva vvb vvg vvm vvo vvr vvv