-er a-a a-b aaa aab aae aaf aao aar ab- aba abb abe abf abo abr aea aeb aee aef aeo aer af- afa afb afe aff afo afr aoa aob aoe aof aoo aor ar- ara arb are arf aro arr baa bab bae baf bao bar bba bbb bbe bbf bbo bbr be- bea beb bee bef beo ber bfa bfb bfe bff bfo bfr boa bob boe bof boo bor bra brb bre brf bro brr eaa eab eae eaf eao ear eba ebb ebe ebf ebo ebr eea eeb eee eef eeo eer ef- efa efb efe eff efo efr eo- eoa eob eoe eof eoo eor era erb ere erf ero err faa fab fae faf fao far fba fbb fbe fbf fbo fbr fea feb fee fef feo fer ffa ffe fff ffo ffr foa fob foe fof foo for fra frb fre frf fro frr oaa oab oae oaf oao oar ob- oba obb obe obf obo obr oea oeb oee oef oeo oer of- ofa ofb ofe off ofo ofr oo- ooa oob oof ooo oor or- ora orb ore orf oro orr ra- raa rab rae raf rao rar rba rbb rbe rbf rbo rbr re- rea reb ree ref reo rer rfa rfb rfe rff rfo rfr roa rob roe rof roo ror rra rrb rrf rrr

a-be aaaa aaab aaae aaaf aaar aaba aabb aaea aafa aafb aaff aaoe aaoo aara aare aaro abaa abab abae abaf abar abb- abba abbb abbe abbo abbr abee aber abff aboa abob abof aboo abor abra abro aeaf aeer aer- aera aero afaa afao afar afee afer affa affo afoa afoe afoo afor afr- afra afre afro aoba aora aorb arab arae araf arar arba arbe area aree aref areo arfa arfb arff aroa arob aroe aroo aror arr- arra arre arro arrr baaa baaf baar baba babb babe babo babr baer baff bafo bar- bara barb bare barf baro barr bbbb bbeb beaf bear beba bebb bebe bebo beeb beef beer befa befe beff befo beo- beof beor bera bere bero berr boab boar boba bobb bobe bobo boea boee boef boeo boer bofa bofe boff boob booe boof boor bor- bora bore borf boro borr brab brae braf brao brea breb bree bref breo brer broa brob broe broo bror brrr eaaf eaba eafb eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eefa eefe eera eero efab efbr efeo effa efor eora eore eraf erba erbb erbe ereb erer erob eroe eroo erra erre erro faaa faba fabe fabo faeb fafa fafe faff fafo fara farb fare faro farr fbar feaf fear feba febo feeb feer fefe feff fefo feof fera ferb fere fero ferr ffar ffee ffff ffrr foaf foar foba foer fofo foof for- fora forb fore foro forr frab frae frea free freo frob froe o-eo oaer oafo oara oare obba obbo obea ober oboe obor obra obre obro oera oere ofer off- offa offe offo offr ofor ofra ofre ooaa ooba oobe ooer ooff oooo oora oore orab orae orao orar orba orbb orbe orbo ore- orea oreb oreo orer orfe orff oro- oroe orof oror orra orro raab raaf raba rabb rabe rabo raef raer rafa rafe raff raob rara rarb rare rarf raro rbaf rbbb rbbr rea- reae reaf reao rear reba rebb rebe rebo reeb reef refe reff refr reof rera rere rero rfae rfef roab roaf roar rob- roba robb robe robo roea roer rofe roff rofo roob roof roor rora rore roro rrrr

-aaa- aaaee aabaa aabba aabra aaeaf abaab ababa ababe abaer abara abare abbar abear abeba abebe abeer abera abere aberr abfab aboab abobo abora abore abrar aeaea aebbe aereo aero- aeroe afara afare afear afefe afere affer affor afore afree afro- afrob ar-ab arab- araba arabe arabo araea arafo arara arare arbab arbar arbee arber arbor arbre areae arear areef areo- arere arero arfe aroab aroar aroba arobe aroer aroof aroor arora arore arrea arroe baabe babar babee baber baboo babra baffa bafra baoro baraa barab barao barar barba barbe barea bareo barer barff baro- baroa barof baroo baror barra barre barro bbbee bbear be-er be-ro beafe beara beare bebar beber bebra beebe beffe befoe befor beofe beoff berar berba berbe berea berob beroe beror berra berre bo-bo boaro bobar bobea bobr bobre boero boffa boffo booba booer boora boore borba borbo borea boree borer boro- boroa boroo borra borre borro braff breba breef breer breo- brera brere brobo broer brora brrar brrrr eafre earar earof ebara ebber eeeee efare efere effer effra efore eofor eorre eraof erbaa erbar erbbe erber erear erere eroor erora erore error fabae fabbo faber faboo fabor fabra fabre fabro faora farab farao farbe farbo fareb farer farfa farob faroe faroo farre farro feare febre feeor feere fefor feoff ferae ferr- ferra ferre ferro fobar fofao foore for-a fore- foreo forra forro fraba frear freea freer frera frere frobe frore o-fer o-r-b oarer oaror obaba obara obora oboro obrab obreb ofafa offer offof offre ofora oo-er ooooo oraba oraea orara orare orbea orear oreo- orera orere orero orfar orfeo orfoe orfor orobe orobo oroer ra-ra raaba raabe raaff raaor rabab rabba rabbe rabor raeff rafar rafer raffa raffe rarae raraf rareb raree rarer reafe rear- rebab rebar rebbe reber rebra reefa reefe reere refar refer reffe reffo rere- reree rerob ro-ro roabe robab robar robbe robbo rober robo- robor roera roero roffa roffe rofor rooba rooer roofe roore rorer rorra

aaaaba aabroo abaera abaroa abeere aberra abobra aboffe abrafo abrera aerfer aerobe afeefa affear affeer affere affore affre afore- araafa arabo- ararao arbaer arbore arbra areare arefor areora arfara arfarf aroffe arorae arraba arrear arrebo arrere arroba baabaa baabar baaror bababe babare babbar bafaro baffoe baobab bar-or barara barbae barbar barbee barber barbra barbre barbro bareof barera barfee barrea barrer bbbbbb bearer beebea beebee beefer before befree beraba berare berbar berbee berbeo berber berere beroea berrer berroa