-er a-a a-b aaa aab aae aao aap aar ab- aba abb abe abo abp abr aea aeb aee aeo aep aer aoa aob aoe aoo aop aor ap- apa apb ape apo app apr ar- ara arb are aro arp arr b-p baa bab bae bao bap bar bba bbb bbe bbo bbp bbr be- bea beb bee beo bep ber boa bob boe boo bop bor bpa bpb bpe bpo bpp bpr bra brb bre bro brp brr eaa eab eae eao eap ear eba ebb ebe ebo ebp ebr eea eeb eee eeo eep eer eo- eoa eob eoe eoo eop eor ep- epa epb epe epo epp epr era erb ere ero erp err oaa oab oae oao oap oar ob- oba obb obe obo obp obr oea oeb oee oeo oep oer oo- ooa oob ooo oop oor op- opa opb ope opo opp opr or- ora orb ore oro orp orr p-p paa pab pae pao pap par pba pbb pbe pbo pbp pbr pea peb pee peo pep per poa pob poe poo pop por ppa ppb ppe ppo ppp ppr pra prb pre pro prp prr ra- raa rab rae rao rap rar rba rbb rbe rbo rbp rbr re- rea reb ree reo rep rer roa rob roe roo rop ror rpa rpb rpe rpo rpp rpr rra rrb rrp rrr

a-be aaaa aaab aaae aaap aaar aaba aabb aabp aaea aaep aaoe aaoo aapa aapo aara aare aaro aarp abaa abab abae abap abar abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abpa abpp abpr abra abro aeap aeer aer- aera aero aoba aopo aora aorb apao apap apar apba apbr apea apep aper apo- apoe apoo apop apor appa appr apra apre apro arab arae arap arar arba arbe area aree areo arep aroa arob aroe aroo aror arpa arpe arr- arra arre arro arrr baaa baar baba babb babe babo babr baer bapa bape bapp bar- bara barb bare baro barr bbbb bbeb bbpr beap bear beba bebb bebe bebo beeb beep beer beo- beor bepo bera bere bero berr boab boar boba bobb bobe bobo boea boee boeo boep boer boob booe boop boor bopa bope bopp bor- bora bore boro borr bpea bpoe brab brae brao brea breb bree breo brep brer broa brob broe broo bror brrr eaba eaop eapp eara earb eare earo earp ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eera eero eora eore epaa epee eper epor eppa eppo eppp epra eprb epro eprp erap erba erbb erbe ereb erer erob eroe eroo erpa erpe erra erre erro o-eo oaer oara oare obba obbo obea ober oboe obor obra obre obro oepa oera oere ooaa ooba oobe ooer oooo oora oore opap opar opep oper opo- opor oppa oppo opra orab orae orao orar orba orbb orbe orbo ore- orea oreb oreo orer oro- oroe oror orpe orra orro paap paar paba paea paep paer papa papb pape papp papr par- para pare paro parp parr pbar pbpa peab peap pear peba peep peer peor pepa pepe pepo per- pera pere pero perp perr poar poba pobo poea poer poop poor pop- popa pope popo popp pora porb pore poro porr ppap ppar pper ppoa pppa pppo pppp prae prao prar pre- preb pree prep pro- proa prob proe proo prop raab raba rabb rabe rabo raep raer raob raop rapa rape rapp rara rarb rare raro rbbb rbbr rea- reae reao reap rear reba rebb rebe rebo reeb reep reop repe repo repp repr rera rere rero roab roap roar rob- roba robb robe robo roea roer roob roop roor ropa rope ropo rora rore roro rpob rpoe rrrr

-aaa- a-a-p aaaee aabaa aabba aabra aapep aarop abaab ababa ababe abaer abapo abara abare abbar abear abeba abebe abeer abera abere aberr aboab abobo abora abore abrar aeaea aebbe aereo aero- aeroe apapa apar- apara apare apear apeba apeep aper- apera apere apoop apoor apopa apopo apore aporo appar apper appro ar-ab arab- araba arabe arabo araea arara arare arbab arbar arbee arber arbor arbre areae arear areo- arepa arere arero aroab aroar aroba arobe aroer aroor aropa arope arora arore arpar arrea arroe baabe baaop babar babee baber baboo babra baoro bappe baraa barab barao barar barba barbe barea bareo barer baro- baroa baroo baror barra barre barro bbbee bbear be-er be-ro beara beare bebar beber bebop bebra beebe bepop beppe beppo berar berba berbe berea berob beroe beror berra berre bo-bo boaro bobar bobea bobr bobre boero booba booer boora boore borba borbo borea boree borer boro- boroa boroo borra borre borro breba breer breo- brera brere brobo broer brora brrar brrrr e-pro eapoe earar ebara ebber eeeee eepee eoppa eorpa eorre erbaa erbar erbbe erber erear erere eroor erora erore error o-r-b oarer oaror obaba obara obora oboro obrab obreb oeppo oo-er ooooo opara opepa opepe opera opere opobo opper oprea oraba oraea orapa orara orare orbea orear oreo- orera orere orero orobe orobo oroer oropa p-rep paape paara paarp pabbo pabra paope paoro papa- papar paper papop pappa pappe pappo papre para- parae parao parea paree pareo parer paroa paroe paroo parr- parra parre parro peabo peara peare pebre peebo peere pepap pepea pepee peppa peppe perea perer perre perro po-po pobe pobra poeae pooer poope poopo poora poore poper popop poppa poppe poppo porab porae porba poreb porer poro- porra porro pppoa prabe prae- praoe preop prepa proap proba probe probo proer proor prop- prope propp propr prora prore ra-ra raaba raabe raaor rabab rabap rabba rabbe rabor rapae rapar rapee raper rapor rappa rarae rareb raree rarer reape rear- rebab rebar rebbe reber rebop rebra reepe reere repar repop repor reppe repro rere- reree rerob ro-ro roabe robab robar robbe robbo rober robo- robop robor roera roero rooba rooer roopa roope roore ropar roper roppe rorer rorra rprop rrape

aaaaba aabroo abaera abaroa abeere aberra abobra abrepo