-er a-a a-b aaa aab aad aae aao aap aar aav ab- aba abb abd abe abo abp abr abv ad- ada adb add ade ado adp adr adv aea aeb aed aee aeo aep aer aev aoa aob aod aoe aoo aop aor aov ap- apa apb apd ape apo app apr apv ar- ara arb ard are aro arp arr arv av- ava avb avd ave avo avp avr b-p baa bab bad bae bao bap bar bav bba bbb bbd bbe bbo bbp bbr bda bdb bdd bde bdo bdp bdr bdv be- bea beb bed bee beo bep ber bev boa bob bod boe boo bop bor bov bpa bpb bpd bpe bpo bpp bpr bpv bra brb brd bre bro brp brr brv bva bvb bvd bve bvo bvp bvr bvv daa dab dad dae dao dap dar dav dba dbb dbd dbe dbo dbp dbr dbv dda ddb ddd dde ddo ddp ddr de- dea deb ded dee deo dep der dev doa dob dod doe doo dop dor dov dpa dpb dpd dpe dpo dpp dpr dpv dra drb drd dre dro drp drr drv dva dvb dvd dve dvp dvr eaa eab ead eae eao eap ear eav eba ebb ebd ebe ebo ebp ebr ebv ed- eda edb edd ede edo edp edr eea eeb eed eee eeo eep eer eev eo- eoa eob eod eoe eoo eop eor ep- epa epb epd epe epo epp epr era erb erd ere ero erp err erv eva evb evd eve evo evp evr evv oaa oab oad oae oao oap oar oav ob- oba obb obd obe obo obp obr obv oda odb odd ode odo odp odr odv oea oeb oed oee oeo oep oer oo- ooa oob ood ooo oop oor oov op- opa opb opd ope opo opp opr opv or- ora orb ord ore oro orp orr orv ov- ova ovb ovd ove ovo ovp ovv p-p paa pab pad pae pao pap par pav pba pbb pbd pbe pbo pbp pbr pda pdb pdd pde pdo pdp pdr pdv pea peb ped pee peo pep per pev poa pob pod poe poo pop por pov ppa ppb ppd ppe ppo ppp ppr ppv pra prb prd pre pro prp prr prv pva pvb pvd pve pvo pvp pvr pvv ra- raa rab rad rae rao rap rar rav rba rbb rbd rbe rbo rbp rbr rda rdb rdd rde rdo rdp rdr rdv re- rea reb red ree reo rep rer rev roa rob rod roe roo rop ror rov rpa rpb rpd rpe rpo rpp rpr rpv rra rrb rrd rrp rrr rva rvb rvd rve rvo rvp rvr rvv v-a v-e vaa vab vad vae vao vap var vav vba vbd vbo vbr vbv vdb vdd vde vdo vdp vdr vdv vea veb ved vee veo vep ver voa vob vod voe voo vop vor vov vpa vpb vpd vpe vpo vpp vpr vra vrb vrd vre vrp vrr vva vvb vvo vvr vvv

a-be a-do aaaa aaab aaad aaae aaap aaar aaav aaba aabb aabd aabp aada aade aaea aaep aaev aaoe aaoo aapa aapo aara aard aare aaro aarp aava abaa abab abad abae abap abar abb- abba abbb abbe abbo abbr abda abdo abed abee aber aboa abob abod aboo abor abov abpa abpd abpp abpr abra abro abva abvd abvp adaa adab adad adae adao adap adar adba adda addd adde addo addr adea adeb adee adeo ader adob adod adoe adoo ador adp- adra adre adro advb aeap aede aeer aer- aera aerd aero aeva aoba aopo aora aorb apao apap apar apba apbr apda apdd apea aped apep aper apev apo- apod apoe apoo apop apor appa appd appr apra apre apro arab arad arae arap arar arba arbe arda arde ardo area ared aree areo arep arev aroa arob arod aroe aroo aror arpa arpe arr- arra arre arro arrr arva arve arvo avab avao avar avda avdp avea aveo aver avor avra avre avro avva avvo baaa baad baar baba babb babe babo babr bada badb badd bade bado badr baed baer bapa bape bapp bar- bara barb bard bare baro barr bava bave bbad bbbb bbdd bbdo bbeb bbpr bd-r bdav bead beap bear beav beba bebb bebe bebo beda bede bedo beeb beed beep beer beo- beod beor bepo bera berd bere bero berr bevo boab boad boar boba bobb bobe bobo boda bodb bode bodo boea boee boeo boep boer boob bood booe boop boor bopa bope bopp bor- bora bord bore boro borr bova bove bovo bpda bpea bpoe bprd brab brad brae brao brav brda brdo brea breb bred bree breo brep brer brev broa brob brod broe broo bror brrr d-bo daab daad daae daap daar daba dabb dabo dabp dada dade dado daeb daer dapa dape dapp dara darb dard dare daro darp darr dava dave dbar dbpd dddd ddpo ddre dead deae deap dear deba debe deda dedd dede dedo deeb deed deep deer deev deop deor depa depe depo depp depr der- dera derb dere dero derp derr derv deva deve devo doab doae doap doar doba dobb dobe dod- doda dodd dode dodo doea doer doob dood doop door dopa dope dopo dopp dopr dora dord dore doro dorp dorr dove dpaa dper dppa draa drab drad drap drar drba drda drea dred dree drev drob drod drop drra dvar dvda dvdr dvoa dvor dvra dvrp eaba eada eadb eadd eadp eaop eapp eara earb eard eare earo earp eave eavp ebba ebbo ebbr ebed eber eboe eboo ebor ebpo ebro edad edar edda edde eddo eddp ede- edea eder edod edra edve eede eeea eeee eera eero eeva eode eora eore epaa epad epee eper epod epor eppa eppo eppp epra eprb epro eprp erad erap erba erbb erbe erda erde ereb ered erer erev erob erod eroe eroo erpa erpe erra erre erro erve evae