-er a-a a-b a-t aaa aab aae aag aao aap aar aat ab- aba abb abe abg abo abp abr abt aea aeb aee aeg aeo aep aer aet ag- aga agb age agg ago agp agr agt aoa aob aoe aog aoo aop aor aot ap- apa apb ape apg apo app apr apt ar- ara arb are arg aro arp arr art at- ata atb ate atg ato atp atr att b-p baa bab bae bag bao bap bar bat bba bbb bbe bbg bbo bbp bbr bbt be- bea beb bee beg beo bep ber bet bga bgb bge bgg bgo bgp bgr bgt boa bob boe bog boo bop bor bot bpa bpb bpe bpg bpo bpp bpr bpt bra brb bre brg bro brp brr brt bta btb bte btg bto btp btr btt eaa eab eae eag eao eap ear eat eba ebb ebe ebg ebo ebp ebr ebt eea eeb eee eeg eeo eep eer eet ega egb ege egg ego egp egr egt eo- eoa eob eoe eog eoo eop eor eot ep- epa epb epe epg epo epp epr ept era erb ere erg ero erp err ert eta etb ete etg eto etp etr ett g-p gaa gab gae gag gao gap gar gat gba gbe gbg gbo gbp gbr gbt ge- gea geb gee geg geo gep ger get gga ggb ggg ggo ggp ggr ggt goa gob goe gog goo gop gor got gpa gpb gpe gpg gpo gpp gpr gpt gra grb gre grg gro grp grr grt gta gtb gte gtg gto gtp gtr gtt oaa oab oae oag oao oap oar oat ob- oba obb obe obg obo obp obr obt oea oeb oee oeg oeo oep oer oet oga oge ogg ogo ogp ogt oo- ooa oob oog ooo oop oor oot op- opa opb ope opg opo opp opr opt or- ora orb ore org oro orp orr ort ot- ota otb ote otg oto otp otr ott p-p paa pab pae pag pao pap par pat pba pbb pbe pbg pbo pbp pbr pbt pea peb pee peg peo pep per pet pga pgb pge pgg pgo pgp pgr pgt poa pob poe pog poo pop por pot ppa ppb ppe ppg ppo ppp ppr ppt pra prb pre prg pro prp prr prt pt- pta ptb pte ptg pto ptp ptr ptt ra- raa rab rae rag rao rap rar rat rba rbb rbe rbg rbo rbp rbr rbt re- rea reb ree reg reo rep rer ret rga rgb rge rgg rgo rgp rgr rgt roa rob roe rog roo rop ror rot rpa rpb rpe rpg rpo rpp rpr rpt rra rrb rrg rrp rrr rrt rta rtb rte rtg rto rtp rtr rtt taa tab tae tag tao tap tar tat tba tbb tbe tbg tbo tbp tbr tbt te- tea teb tee teg teo tep ter tet tga tgb tge tgg tgo tgp tgr tgt to- toa tob toe tog too top tor tot tpa tpb tpe tpg tpo tpp tpr tpt tra trb tre trg tro trp trr trt tta ttb tte ttg tto ttp ttr ttt

a-be aaaa aaab aaae aaap aaar aaba aabb aabp aabt aaea aaep aage aaoe aaoo aapa aapo aapt aara aare aaro aarp aart aata aatt abaa abab abae abag abap abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet aboa abob aboo abor abot abpa abpp abpr abra abro abta aeap aeer aega aer- aera aero aeta aeto aetr aett ag-o agag agao agap agar agat agba agbo agea agee agep ager aget agga agge agob agog agoo agot agra agre agro agrp agta agte agtr aoba aopo aora aorb aort apao apap apar apat apba apbg apbr apea apeg apep aper apet apga apo- apoe apoo apop apor apot appa appr appt apra apre apro aprt apta apte aptt arab arae arag arap arar arat arba arbe area aree areg areo arep aret arga argb arge argo aroa arob aroe aroo aror arpa arpe arr- arra arre arrg arro arrr arrt arta arte arto artr at-t ataa atab atae atap atar atat atea atee ateo atep ater atgo atob atoe atop ator atot atpr atra atre atro atrp atta atte atto attp attr baaa baar baat baba babb babe babo babr baer baga bage bagg bago bagt bapa bape bapp bapt bar- bara barb bare barg baro barr bart bata bate bato batt bbbb bbeb bbet bbga bbpr bbrg beag beap bear beat beba bebb bebe bebo beeb beeg beep beer beet bega begg bego beo- beor beot bepo bera bere berg bero berr bert beta bete beto bett boab boag boar boat boba bobb bobe bobo boea boee boeo boep boer boet boga boge bogg bogo bogt boob booe boog boop boor boot bopa bope bopp bor- bora bore borg boro borr bort bota botb bote boto bott bpea bpoe bpot brab brae brag brao brat brea breb bree breg breo brep brer bret broa brob broe brog broo bror brot brrr btaa btbp btob btor btrt bttb eaba eaga eage eaop eapp eara earb eare earo earp eart eata eate ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eega eera eerg eero eeta eete egaa egae egao egar egat egba egbe egea egee eger eggb egge eggo eggp ego- egor egot egpa egpb egpe egpo egra egre egta egte eora eore eota eoto epaa epee eper epor epot eppa eppo eppp epra eprb epro eprp epta epte erap erat erba erbb erbe ereb erer eret erg- erga ergg ergo erob eroe eroo erpa erpe erra erre erro erta etag etap etat etbr etee eter etoe etra etre etro etta ette etto gaap gaar gaba gabb gabe gabo gabp gabr gabt gaea gaer gaga gage gagg gago gapa gape gapp gapt gara garb gare garg garo garp garr gart gata gate gato gatr gatt gbag gbap gbbo geab gear geat geba