-er a-a a-b a-t aaa aab aad aae aaf aao aar aat ab- aba abb abd abe abf abo abr abt ad- ada adb add ade adf ado adr adt aea aeb aed aee aef aeo aer aet af- afa afb afd afe aff afo afr aft aoa aob aod aoe aof aoo aor aot ar- ara arb ard are arf aro arr art at- ata atb atd ate atf ato atr att baa bab bad bae baf bao bar bat bba bbb bbd bbe bbf bbo bbr bbt bda bdb bdd bde bdf bdo bdr bdt be- bea beb bed bee bef beo ber bet bfa bfb bfd bfe bff bfo bfr bft boa bob bod boe bof boo bor bot bra brb brd bre brf bro brr brt bta btb btd bte btf bto btr btt daa dab dad dae daf dao dar dat dba dbb dbd dbe dbf dbo dbr dbt dda ddb ddd dde ddf ddo ddr ddt de- dea deb ded dee def deo der det dfa dfb dfd dfe dff dfo dfr dft doa dob dod doe dof doo dor dot dra drb drd dre dro drr drt dta dtb dtd dte dtf dto dtr dtt eaa eab ead eae eaf eao ear eat eba ebb ebd ebe ebf ebo ebr ebt ed- eda edb edd ede edf edo edr edt eea eeb eed eee eef eeo eer eet ef- efa efb efd efe eff efo efr eft eo- eoa eob eod eoe eof eoo eor eot era erb erd ere erf ero err ert eta etb etd ete etf eto etr ett faa fab fad fae faf fao far fat fba fbb fbd fbe fbf fbo fbr fbt fda fdb fdd fde fdf fdo fdr fdt fea feb fed fee fef feo fer fet ffa ffd ffe fff ffo ffr fft foa fob foe fof foo for fot fra frb frd fre frf fro frr frt fta ftb ftd fte ftf fto ftr ftt oaa oab oad oae oaf oao oar oat ob- oba obb obd obe obf obo obr obt oda odb odd ode odf odo odr odt oea oeb oed oee oef oeo oer oet of- ofa ofb ofd ofe off ofo ofr oft oo- ooa oob ood oof ooo oor oot or- ora orb ord ore orf oro orr ort ot- ota otb otd ote otf oto otr ott ra- raa rab rad rae raf rao rar rat rba rbb rbd rbe rbf rbo rbr rbt rda rdb rdd rde rdf rdo rdr rdt re- rea reb red ree ref reo rer ret rfa rfb rfd rfe rff rfo rfr rft roa rob rod roe rof roo ror rot rra rrb rrd rrf rrr rrt rta rtb rtd rte rtf rto rtr rtt taa tab tad tae taf tao tar tat tba tbb tbd tbe tbf tbo tbr tbt tda tdb tdd tde tdf tdo tdr tdt te- tea teb ted tee tef teo ter tet tfa tfb tfd tfe tff tfo tfr tft to- toa tob tod toe tof too tor tot tra trb trd tre trf tro trr trt tta ttb ttd tte ttf tto ttr ttt

a-be a-do aaaa aaab aaad aaae aaaf aaar aaba aabb aabd aabt aada aade aadt aaea aafa aafb aafd aaff aaoe aaoo aara aard aare aaro aart aata aatf aatt abaa abab abad abae abaf abar abat abb- abba abbb abbe abbo abbr abbt abda abdo abed abee aber abet abff aboa abob abod abof 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 adfa adob adod adoe adoo ador adot adra adre adro adta aeaf aede aedt aeer aer- aera aerd aero aeta aetf aeto aetr aett afaa afad afao afar afat afdb afee afer afet affa affo afft afoa afoe afoo afor afr- afra afre afro afta afte aoba aora aorb aort aotd aotf arab arad arae araf arar arat arba arbe arda arde ardf ardo area ared aree aref areo aret arfa arfb arff arft 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 atef ateo ater atfb atfe atob atod atoe atof ator atot atra atre atro atta atte atto attr baaa baad baaf baar baat baba babb babe babo babr bada badb badd bade bado badr baed baer baff bafo baft bar- bara barb bard bare barf baro barr bart bata bate batf bato batt bbad bbbb bbdd bbdo bbeb bbet bd-r bead beaf bear beat beba bebb bebe bebo beda bede bedo beeb beed beef beer beet befa befe beff befo beft beo- beod beof beor beot bera berd bere bero berr bert beta bete beto bett bfta bftt boab boad boar boat boba bobb bobe bobo boda bodb bode bodo boea boee boef boeo boer boet bofa bofd bofe boff boob bood booe boof boor boot bor- bora bord bore borf boro borr bort bota botb botd bote boto bott brab brad brae braf brao brat brda brdo brdt brea breb bred bree bref breo brer bret broa brob brod broe broo bror brot brrr btaa btaf btdt btob btor btrt bttb d-bo daab daad daae daar daba dabb dabo dabt dada dade dado daeb daer dafa dafe daff dafo daft dara darb dard dare darf daro darr dart data date dato datr datt dbar dbfo dbtt dddd ddot ddre dead deae deaf dear deba debe debt deda dedd dede dedo deeb deed deef deer deet defe deff defo deft deor der- dera derb dere derf dero derr deta dete deto detr dfaf dfdt dfer dffa dfoe dfrf dftr doab doae doar doat doba dobb dobe dod- doda dodd dode dodo doea doer doff doob dood doof door doot dora dord dore dorf doro dorr dort dota dotd dote doto dott draa drab drad draf drar drat drba drda drea