-er a-a a-b a-t aaa aab aad aae aao aar aat ab- aba abb abd abe abo abr abt ad- ada adb add ade ado adr adt aea aeb aed aee aeo aer aet aoa aob aod aoe aoo aor aot ar- ara arb ard are aro arr art at- ata atb atd ate ato atr att baa bab bad bae bao bar bat bba bbb bbd bbe bbo bbr bbt bda bdb bdd bde bdo bdr bdt be- bea beb bed bee beo ber bet boa bob bod boe boo bor bot bra brb brd bre bro brr brt bta btb btd bte bto btr btt daa dab dad dae dao dar dat dba dbb dbd dbe dbo dbr dbt dda ddb ddd dde ddo ddr ddt de- dea deb ded dee deo der det doa dob dod doe doo dor dot dra drb drd dre dro drr drt dta dtb dtd dte dto dtr dtt eaa eab ead eae eao ear eat eba ebb ebd ebe ebo ebr ebt ed- eda edb edd ede edo edr edt eea eeb eed eee eeo eer eet eo- eoa eob eod eoe eoo eor eot era erb erd ere ero err ert eta etb etd ete eto etr ett oaa oab oad oae oao oar oat ob- oba obb obd obe obo obr obt oda odb odd ode odo odr odt oea oeb oed oee oeo oer oet oo- ooa oob ood ooo oor oot or- ora orb ord ore oro orr ort ot- ota otb otd ote oto otr ott ra- raa rab rad rae rao rar rat rba rbb rbd rbe rbo rbr rbt rda rdb rdd rde rdo rdr rdt re- rea reb red ree reo rer ret roa rob rod roe roo ror rot rra rrb rrd rrr rrt rta rtb rtd rte rto rtr rtt taa tab tad tae tao tar tat tba tbb tbd tbe tbo tbr tbt tda tdb tdd tde tdo tdr tdt te- tea teb ted tee teo ter tet to- toa tob tod toe too tor tot tra trb trd tre tro trr trt tta ttb ttd tte tto ttr ttt

a-be a-do aaaa aaab aaad aaae aaar aaba aabb aabd aabt aada aade aadt aaea aaoe aaoo aara aard aare aaro aart aata aatt abaa abab abad abae abar abat abb- abba abbb abbe abbo abbr abbt abda abdo abed abee aber abet aboa abob abod aboo abor abot abra abro abta adaa adab adad adae adao adar adat adba adda addd adde addo addr adea adeb adee adeo ader adet adob adod adoe adoo ador adot adra adre adro adta aede aedt aeer aer- aera aerd aero aeta aeto aetr aett aoba aora aorb aort aotd arab arad arae arar arat arba arbe arda arde ardo area ared aree areo aret aroa arob arod aroe aroo aror arr- arra arre arro arrr arrt arta arte arto artr at-t ataa atab atad atae atar atat atdt atea ated atee ateo ater atob atod atoe ator atot atra atre atro atta atte atto attr baaa baad baar baat baba babb babe babo babr bada badb badd bade bado badr baed baer bar- bara barb bard bare baro barr bart bata bate bato batt bbad bbbb bbdd bbdo bbeb bbet bd-r bead bear beat beba bebb bebe bebo beda bede bedo beeb beed beer beet beo- beod beor beot bera berd bere bero berr bert beta bete beto bett boab boad boar boat boba bobb bobe bobo boda bodb bode bodo boea boee boeo boer boet boob bood booe boor boot bor- bora bord bore boro borr bort bota botb botd bote boto bott brab brad brae brao brat brda brdo brdt brea breb bred bree breo brer bret broa brob brod broe broo bror brot brrr btaa btdt btob btor btrt bttb d-bo daab daad daae daar daba dabb dabo dabt dada dade dado daeb daer dara darb dard dare daro darr dart data date dato datr datt dbar dbtt dddd ddot ddre dead deae dear deba debe debt deda dedd dede dedo deeb deed deer deet deor der- dera derb dere dero derr deta dete deto detr doab doae doar doat doba dobb dobe dod- doda dodd dode dodo doea doer doob dood door doot dora dord dore doro dorr dort dota dotd dote doto dott draa drab drad drar drat drba drda drea dred dree dret drob drod drot drra dtaa dted dtor dtot eaba eada eadb eadd eara earb eard eare earo eart eata eate ebba ebbo ebbr ebed eber eboe eboo ebor ebro edad edar edda edde eddo ede- edea eder edod edra edta eede eeea eeee eera eero eeta eete eode eora eore eota eotd eoto erad erat erba erbb erbe erda erde ereb ered erer eret erob erod eroe eroo erra erre erro erta etat etbr etee eter etoe etra etre etro etta ette etto o-eo oade oaer oara oare oate obad obba obbo obdt obea obed ober obet oboe obor obot obra obre obro obtd odbo odda oddd odea oded odeo oder odet odoo odor odot odra oedo oera oere oeta ooaa ooba oobe ooda ooer oooo oora oord oore oort ootb orab orad orae orao orar orat orba orbb orbe orbo orda orde ordo ore- orea oreb ored oreo orer oro- oroe oror orot orra orro orta orte orto otar otbd otea oted otee oter oto- otoe otoo otor otra otre otro otta otte otto raab raad raat raba rabb rabe rabo rada radd rade rado radr radt raed raer raob rara rarb rare raro rata rate rato ratt rbbb rbbr rder rea- read reae reao rear reat reba rebb rebe rebo reda redd rede redo redr reeb reed reet reod reot rera rerd rere rero rert reta retd rete reto retr rett roab road roar roat rob- roba robb robe robo robt roda rodd rode rodo roea roed roer roet roob rood roor root rora rore roro rort rota rote roto rotr