-er a-a a-b aaa aab aae aag aak aam aap aar ab- aba abb abe abg abk abm abp abr aea aeb aee aeg aek aem aep aer ag- aga agb age agg agk agm agp agr aka akb ake akg akk akm akp akr ama amb ame amg amk amm amp amr ap- apa apb ape apg apk apm app apr ar- ara arb are arg ark arm arp arr b-p baa bab bae bag bak bam bap bar bba bbb bbe bbg bbk bbm bbp bbr be- bea beb bee beg bek bem bep ber bga bgb bge bgg bgk bgm bgp bgr bka bkb bke bkg bkk bkm bkp bkr bma bmb bme bmg bmk bmm bmp bmr bpa bpb bpe bpg bpm bpp bpr bra brb bre brg brk brm brp brr eaa eab eae eag eak eam eap ear eba ebb ebe ebg ebk ebm ebp ebr eea eeb eee eeg eek eem eep eer ega egb ege egg egm egp egr eka ekb eke ekg ekp ekr em- ema emb eme emg emk emm emp emr ep- epa epb epe epg epm epp epr era erb ere erg erk erm erp err g-p gaa gab gae gag gak gam gap gar gba gbe gbg gbk gbm gbp gbr ge- gea geb gee geg gek gem gep ger gga ggb ggg ggm ggp ggr gka gkb gkm gkp gma gmb gme gmg gmm gmp gmr gpa gpb gpe gpg gpk gpm gpp gpr gra grb gre grg grk grm grp grr ka- kaa kab kae kag kak kam kap kar kba kbb kbe kbk kbm kbp kbr ke- kea keb kee keg kek kem kep ker kga kgb kgm kgp kkb kke kkk kkm kkp kkr kma kmb kme kmg kmk kmm kmp kpa kpe kpk kpm kpp kpr kra krg krk krp krr m-r maa mab mae mag mak mam map mar mba mbb mbe mbg mbk mbm mbp mbr mea meb mee meg mek mem mep mer mga mgb mge mgk mgm mgp mgr mka mkb mke mkg mkk mkm mkp mkr mma mmb mme mmg mmk mmm mmp mmr mpa mpb mpe mpg mpk mpm mpp mpr mra mrb mre mrg mrk mrm mrp mrr p-p paa pab pae pag pak pam pap par pba pbb pbe pbg pbk pbm pbp pbr pea peb pee peg pek pem pep per pga pgb pge pgg pgk pgm pgp pgr pka pkb pke pkg pkm pkp pkr pma pmb pme pmg pmk pmm pmp pmr ppa ppb ppe ppg ppk ppm ppp ppr pra prb pre prg prk prm prp prr ra- raa rab rae rag rak ram rap rar rba rbb rbe rbg rbk rbm rbp rbr re- rea reb ree reg rek rem rep rer rga rgb rge rgg rgk rgp rgr rkb rke rkg rkk rkm rkp rma rmb rme rmg rmm rmp rmr rpa rpb rpe rpg rpk rpm rpp rpr rra rrb rrg rrk rrm rrp rrr

a-ak a-be aaaa aaab aaae aaam aaap aaar aaba aabb aabm aabp aaea aaem aaep aage aaka aake aama aamb aame aamp aamr aapa aapm aara aare aarm aarp abaa abab abae abag abak abam abap abar abb- abba abbb abbe abbr abee aber abma abmb abpa abpm abpp abpr abra aeap aeer aega aeka aer- aera agag agam agap agar agba agea agee agem agep ager agga agge agma agme agra agre agrp akaa akae akam akap akar akee akeg aker akka akr- akra akre amaa amae amag amam amap amar amb- amba ambe ambr amee amer amga amka amm- amma amme ampa ampe ampk ampm amra apak apam apap apar apba apbg apbr apea apeg apem apep aper apga apke apma appa appr apra apre arab arae arag arak aram arap arar arba arbe area aree areg arek arem arep arga argb arge arka arke arma arme armm arpa arpe arr- arra arre arrg arrk arrr baaa baak baam baar baba babb babe babm babr baek baer baga bage bagg bak- baka bake bakr bama bamb bame bamm bamp bapa bape bapp bar- bara barb bare barg bark barm barr bbbb bbeb bbga bbgm bbmg bbpr bbrg beag beak beam beap bear beba bebb bebe beeb beeg beek beem beep beer bega begg beka beke bema beme bera bere berg berk berm berr bkpg bkpr bmaa bmag bmep bpea brab brae brag brak bram brea breb bree breg brek brem brep brer brka brkb brrm brrr eaba eaga eage eama eame eapp eara earb eare earp ebam ebba ebbr eber eeea eeee eega eeka eeke eera eerg egaa egae egar egba egbe egea egee egem eger eggb egge eggp egma egpa egpb egpe egpm egra egre eka- ekab ekam ekeb ekek eker ekka ekma ekpe emae emag emam emar emba embe embr emek emer emma emme empa empe empg emra emre epaa epam epbm epee eper epgm eppa eppp epra eprb eprp eram erap erba erbb erbe ereb erem erer erg- erga ergg erke erma erme erpa erpe erra erre gaap gaar gaba gabb gabe gabp gabr gaea gaer gaga gage gagg gam- gama gamb game gamm gamp gapa gape gapp gara garb gare garg garm garp garr gbag gbap geab gear geba gebe geek geep geer gege gegg gem- gema gemm gemr gepa gepe gera gerb gere germ gggg gkrp gmer gmme gmmr gpaa gpam gper gpgp gpra gprp grab grae gram grap grbr grea greb gree greg grem grep grrr kaaa kaab kaag kaak kaam kaap kaar kaba kabb kabe kabg kabr kaep kaer kag- kaga kagb kage kagg kagm kagr kaka kake kakk kakm kam- kama kamb kame kamm kamp kamr kap- kapa kape kapg kapp kara karb kare karg kark karm karp karr kbaa kbab kbae kbak kbam kbap kbar kbba kbbb kbbe kbbg kbbk kbbm kbbr kbeb kbee kbek kber kbga kbgb kbge kbgg kbgm kbgr kbkb kbkg kbkk kbkr kbmb kbme kbmg kbmp kbmr kbpa kbpe kbpg kbpk kbpr kbra kbrb kbre kbrg kbrk