-er a-a a-b aaa aab aae aag aak aao aap aar ab- aba abb abe abg abk abo abp abr aea aeb aee aeg aek aeo aep aer ag- aga agb age agg agk ago agp agr aka akb ake akg akk ako akp akr aoa aob aoe aog aok aoo aop aor ap- apa apb ape apg apk apo app apr ar- ara arb are arg ark aro arp arr b-p baa bab bae bag bak bao bap bar bba bbb bbe bbg bbk bbo bbp bbr be- bea beb bee beg bek beo bep ber bga bgb bge bgg bgk bgo bgp bgr bka bkb bke bkg bkk bko bkp bkr boa bob boe bog bok boo bop bor bpa bpb bpe bpg bpo bpp bpr bra brb bre brg brk bro brp brr eaa eab eae eag eak eao eap ear eba ebb ebe ebg ebk ebo ebp ebr eea eeb eee eeg eek eeo eep eer ega egb ege egg ego egp egr eka ekb eke ekg eko ekp ekr eo- eoa eob eoe eog eok eoo eop eor ep- epa epb epe epg epo epp epr era erb ere erg erk ero erp err g-p gaa gab gae gag gak gao gap gar gba gbe gbg gbk gbo gbp gbr ge- gea geb gee geg gek geo gep ger gga ggb ggg ggo ggp ggr gka gkb gko gkp goa gob goe gog gok goo gop gor gpa gpb gpe gpg gpk gpo gpp gpr gra grb gre grg grk gro grp grr ka- kaa kab kae kag kak kao kap kar kba kbb kbe kbk kbo kbp kbr ke- kea keb kee keg kek keo kep ker kga kgb kgo kgp kkb kke kkk kkp kkr koa kob koe kog kok koo kop kor kpa kpe kpk kpo kpp kpr kra krg krk kro krp krr oaa oab oae oag oak oao oap oar ob- oba obb obe obg obk obo obp obr oea oeb oee oeg oeo oep oer oga oge ogg ogo ogp oka okb oke okg okk oko okp okr oo- ooa oob oog ook ooo oop oor op- opa opb ope opg opk opo opp opr or- ora orb ore org ork oro orp orr p-p paa pab pae pag pak pao pap par pba pbb pbe pbg pbk pbo pbp pbr pea peb pee peg pek peo pep per pga pgb pge pgg pgk pgo pgp pgr pka pkb pke pkg pko pkp pkr poa pob poe pog pok poo pop por ppa ppb ppe ppg ppk ppo ppp ppr pra prb pre prg prk pro prp prr ra- raa rab rae rag rak rao rap rar rba rbb rbe rbg rbk rbo rbp rbr re- rea reb ree reg rek reo rep rer rga rgb rge rgg rgk rgo rgp rgr rkb rke rkg rkk rko rkp roa rob roe rog rok roo rop ror rpa rpb rpe rpg rpk rpo rpp rpr rra rrb rrg rrk rrp rrr

a-ak a-be a-ok aaaa aaab aaae aaap aaar aaba aabb aabp aaea aaep aage aaka aake aaoe aaoo aapa aapo aara aare aaro aarp abaa abab abae abag abak abap abar abb- abba abbb abbe abbo abbr abee aber aboa abob abok aboo abor abpa abpp abpr abra abro aeap aeer aega aeka aer- aera aero ag-o agag agao agap agar agba agbo agea agee agep ager agga agge agob agog agoo agra agre agro agrp akaa akae akao akap akar akee akeg aker akka akko akok akpo akr- akra akre aoba aokp aopo aora aorb apak apao apap apar apba apbg apbr apea apeg apep aper apga apke apo- apoe apoo apop apor appa appr apra apre apro arab arae arag arak arap arar arba arbe area aree areg arek areo arep arga argb arge argo arka arke arko aroa arob aroe aroo aror arpa arpe arr- arra arre arrg arrk arro arrr baaa baak baar baba babb babe babo babr baek baer baga bage bagg bago bak- baka bake bako bakr bapa bape bapp bar- bara barb bare barg bark baro barr bbbb bbeb bbga bbpr bbrg beag beak beap bear beba bebb bebe bebo beeb beeg beek beep beer bega begg bego beka beke beko beo- beok beor bepo bera bere berg berk bero berr bkpg bkpr boab boag boak boar boba bobb bobe bobo boea boee boeo boep boer boga boge bogg bogo boka boke boko boob booe boog book boop boor bopa bope bopp bor- bora bore borg bork boro borr bpea bpoe brab brae brag brak brao brea breb bree breg brek breo brep brer brka brkb broa brob broe brog brok broo bror brrr eaba eaga eage eaop eapp eara earb eare earo earp ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eega eeka eeke eera eerg eero egaa egae egao egar egba egbe egea egee eger eggb egge eggo eggp ego- egor egpa egpb egpe egpo egra egre eka- ekab ekeb ekek eker ekka ekoa ekpe ekpo eoka eora eore epaa epee eper epor eppa eppo eppp epra eprb epro eprp erap erba erbb erbe ereb erer erg- erga ergg ergo erke erob eroe eroo erpa erpe erra erre erro gaap gaar gaba gabb gabe gabo gabp gabr gaea gaer gaga gage gagg gago gapa gape gapp gara garb gare garg garo garp garr gbag gbap gbbo geab gear geba gebe geek geep geer gege gegg gego geko geo- geog gepa gepe gera gerb gere gero gggg ggpo gkrp goar goba gobe gobo goer goga gogo goke goog gook goop goor gope gopo gora gorb gore gorg goro gorp gorr gpaa gper gpgp gpra gprp grab grae grap grbr grea greb gree greg grep grob grog grok groo grop gror grrr kaaa kaab kaag kaak kaap kaar kaba kabb kabe kabg kabo kabr kaeo kaep kaer kag- kaga kagb kage kagg kago kagr kaka kake kakk kako kaoa kaog kaok kaor kap- kapa kape kapg kapo kapp kara