-er a-a a-b a-t aaa aab aae aag aap aar aat ab- aba abb abe abg abp abr abt aea aeb aee aeg aep aer aet ag- aga agb age agg agp agr agt ap- apa apb ape apg app apr apt ar- ara arb are arg arp arr art at- ata atb ate atg atp atr att b-p baa bab bae bag bap bar bat bba bbb bbe bbg bbp bbr bbt be- bea beb bee beg bep ber bet bga bgb bge bgg bgp bgr bgt bpa bpb bpe bpg bpp bpr bpt bra brb bre brg brp brr brt bta btb bte btg btp btr btt eaa eab eae eag eap ear eat eba ebb ebe ebg ebp ebr ebt eea eeb eee eeg eep eer eet ega egb ege egg egp egr egt ep- epa epb epe epg epp epr ept era erb ere erg erp err ert eta etb ete etg etp etr ett g-p gaa gab gae gag gap gar gat gba gbe gbg gbp gbr gbt ge- gea geb gee geg gep ger get gga ggb ggg ggp ggr ggt gpa gpb gpe gpg gpp gpr gpt gra grb gre grg grp grr grt gta gtb gte gtg gtp gtr gtt p-p paa pab pae pag pap par pat pba pbb pbe pbg pbp pbr pbt pea peb pee peg pep per pet pga pgb pge pgg pgp pgr pgt ppa ppb ppe ppg ppp ppr ppt pra prb pre prg prp prr prt pt- pta ptb pte ptg ptp ptr ptt ra- raa rab rae rag rap rar rat rba rbb rbe rbg rbp rbr rbt re- rea reb ree reg rep rer ret rga rgb rge rgg rgp rgr rgt rpa rpb rpe rpg rpp rpr rpt rra rrb rrg rrp rrr rrt rta rtb rte rtg rtp rtr rtt taa tab tae tag tap tar tat tba tbb tbe tbg tbp tbr tbt te- tea teb tee teg tep ter tet tga tgb tge tgg tgp tgr tgt tpa tpb tpe tpg tpp tpr tpt tra trb tre trg trp trr trt tta ttb tte ttg ttp ttr ttt

a-be aaaa aaab aaae aaap aaar aaba aabb aabp aabt aaea aaep aage aapa aapt aara aare aarp aart aata aatt abaa abab abae abag abap abar abat abb- abba abbb abbe abbr abbt abee aber abet abpa abpp abpr abra abta aeap aeer aega aer- aera aeta aetr aett agag agap agar agat agba agea agee agep ager aget agga agge agra agre agrp agta agte agtr apap apar apat apba apbg apbr apea apeg apep aper apet apga appa appr appt apra apre aprt apta apte aptt arab arae arag arap arar arat arba arbe area aree areg arep aret arga argb arge arpa arpe arr- arra arre arrg arrr arrt arta arte artr at-t ataa atab atae atap atar atat atea atee atep ater atpr atra atre atrp atta atte attp attr baaa baar baat baba babb babe babr baer baga bage bagg bagt bapa bape bapp bapt bar- bara barb bare barg barr bart bata bate batt bbbb bbeb bbet bbga bbpr bbrg beag beap bear beat beba bebb bebe beeb beeg beep beer beet bega begg bera bere berg berr bert beta bete bett bpea brab brae brag brat brea breb bree breg brep brer bret brrr btaa btbp btrt bttb eaba eaga eage eapp eara earb eare earp eart eata eate ebba ebbr eber eeea eeee eega eera eerg eeta eete egaa egae egar egat egba egbe egea egee eger eggb egge eggp egpa egpb egpe egra egre egta egte epaa epee eper eppa eppp epra eprb eprp epta epte erap erat erba erbb erbe ereb erer eret erg- erga ergg erpa erpe erra erre erta etag etap etat etbr etee eter etra etre etta ette gaap gaar gaba gabb gabe gabp gabr gabt gaea gaer gaga gage gagg gapa gape gapp gapt gara garb gare garg garp garr gart gata gate gatr gatt gbag gbap geab gear geat geba gebe geep geer geet gege gegg gepa gepe gera gerb gere gert geta getb gete getg gett ggbt gggg gpaa gper gpgp gpra gprp grab grae grap grat grbr grea greb gree greg grep gret grrr gtaa gtap gtbr gtea gtta paag paap paar paat paba pabt paea paep paer paga pagb page papa papb pape papg papp papr par- para pare parg parp parr part pata pate patr patt pbar pbpa peab peag peap pear peat peba peep peer peet pega pegg pepa pepe per- pera pere perg perp perr pert peta pete petr pett pgaa pger ppap ppar pper ppga pppa pppp ppta pptt prae prag prar prat pre- preb pree preg prep pret prtp prtr ptab pter raab raag raat raba rabb rabe raeg raep raer raga rage ragg rapa rape rapp rapt rara rarb rare rata rate ratp ratt rbbb rbbr rea- reae reap rear reat reba rebb rebe reeb reep reet rega rege regr regt repe repp repr rept rera rere rerg rert reta rete retr rett rgba rgbe rgtr rpet rpga rpta rrat rrrr rtee rtpa rttp taa- taag taar taat taba tabb tabe taer taga tage tagg tapa tape tapp tapr tapt tara tarb tare targ tarp tarr tart tata tatb tate tatr tatt tbar tbrb tbta tbtp tear teat teba teer teet tega tegg tegt tepa tepe tepp ter- tera tere terp terr teta tete tetr tett tpap tpbg tpeg tper tppa tppp tppr tpte tptp tptr traa trab trae trag trap trat tre- trea tree treg tret trge trpa trpe trpg trpp trra trte trtr ttab ttbb tter tttt

-aaa- -tree a-a-p a-get aaaee aaarg aaata aabaa aabba aabga aabra aapep abaab ababa ababe abaer abaga abara abare abate abbar abbat abbet abear abeat abeba abebe abeer abeet abega abege abegg abera abere aberg aberr abert abgar abrar abtaa abtar aeaea aebbe aegae aegea aeger aetat aeter agapa agape agara agata agate agege agete aggag aggar