-er a-a a-b a-t aaa aab aad aae aao aar aat aau ab- aba abb abd abe abo abr abt abu ad- ada adb add ade ado adr adt adu aea aeb aed aee aeo aer aet aeu aoa aob aod aoe aoo aor aot aou ar- ara arb ard are aro arr art aru at- ata atb atd ate ato atr att atu au- aua aub aud aue auo aur aut b-u baa bab bad bae bao bar bat bau bba bbb bbd bbe bbo bbr bbt bbu bda bdb bdd bde bdo bdr bdt bdu be- bea beb bed bee beo ber bet beu boa bob bod boe boo bor bot bou bra brb brd bre bro brr brt bru bta btb btd bte bto btr btt btu bua bub bud bue buo bur but buu daa dab dad dae dao dar dat dau dba dbb dbd dbe dbo dbr dbt dbu dda ddb ddd dde ddo ddr ddt ddu de- dea deb ded dee deo der det deu doa dob dod doe doo dor dot dou dra drb drd dre dro drr drt dru dta dtb dtd dte dto dtr dtt dtu dua dub dud due duo dur dut eaa eab ead eae eao ear eat eau eba ebb ebd ebe ebo ebr ebt ebu ed- eda edb edd ede edo edr edt edu eea eeb eed eee eeo eer eet eo- eoa eob eod eoe eoo eor eot eou era erb erd ere ero err ert eru eta etb etd ete eto etr ett etu eu- eua eub eud eue eur eut oaa oab oad oae oao oar oat oau ob- oba obb obd obe obo obr obt obu oda odb odd ode odo odr odt odu oea oeb oed oee oeo oer oet oo- ooa oob ood ooo oor oot or- ora orb ord ore oro orr ort oru ot- ota otb otd ote oto otr ott otu ou- oua oud oue ouo our out ra- raa rab rad rae rao rar rat rau rba rbb rbd rbe rbo rbr rbt rbu rda rdb rdd rde rdo rdr rdt rdu re- rea reb red ree reo rer ret reu roa rob rod roe roo ror rot rou rra rrb rrd rrr rrt rru rta rtb rtd rte rto rtr rtt rtu rua rub rud rue ruo rur rut ruu taa tab tad tae tao tar tat tau tba tbb tbd tbe tbo tbr tbt tbu tda tdb tdd tde tdo tdr tdt tdu te- tea teb ted tee teo ter tet teu to- toa tob tod toe too tor tot tou tra trb trd tre tro trr trt tru tta ttb ttd tte tto ttr ttt ttu tua tub tud tue tuo tur tut tuu ua- uaa uab uad uae uao uar uat uau uba ubb ube ubo ubr ubt ubu uda udb udd ude udo udr udt udu uea ueb ued uee uer uet uoa uob uod uoe uoo uor uot ur- ura urb urd ure uro urr urt uru uta utb utd ute uto utr utt utu uua uue uur uut uuu

a-be a-do aaaa aaab aaad aaae aaar aaba aabb aabd aabt aada aade aadt aadu aaea aaoe aaoo aara aard aare aaro aart aaru aata aatt abaa abab abad abae abar abat abau abb- abba abbb abbe abbo abbr abbt abda abdo abdu abed abee aber abet aboa abob abod aboo abor abot abou abra abro abta abtu abua abud abue abut adaa adab adad adae adao adar adat adba adda addd adde addo addr addu adea adeb adee adeo ader adet adob adod adoe adoo ador adot adra adre adro adta adua adub adue adur aede aedt aeer aer- aera aerd aero aeta aeto aetr aett aoba aoeu aora aorb aort aotd aout arab arad arae arar arat arau arba arbe arda arde ardo ardu area ared aree areo aret areu aroa arob arod aroe aroo aror arr- arra arre arro arrr arrt arru arta arte arto artr arua arub arud arue arut at-t ataa atab atad atae atar atat atdt atea ated atee ateo ater atob atod atoe ator atot atra atre atro atru atta atte atto attr attu atua atub atur auaa aube aude audo auer aur- aura aurd aure auro aut- aute auto baaa baad baar baat baba babb babe babo babr babu bada badb badd bade bado badr badu baed baer bar- bara barb bard bare baro barr bart baru bata bate bato batt batu bau- baud baur bbad bbau bbbb bbdd bbdo bbeb bbet bd-r bead bear beat beau beba bebb bebe bebo beda bede bedo bedu beeb beed beer beet beo- beod beor beot bera berd bere bero berr bert beru beta bete beto bett betu beur boab boad boar boat boba bobb bobe bobo bobu boda bodb bode bodo bodu boea boee boeo boer boet boob bood booe boor boot bor- bora bord bore boro borr bort boru bota botb botd bote boto bott boua boud boue bour bout brab brad brae brao brat brau brda brdo brdt brea breb bred bree breo brer bret broa brob brod broe broo bror brot brou brrr brud brue brut btaa btdt btob btor btrt bttb buad buar buat buba bubb bube bubo bubu buda budb budd bude budo budu buea buer bueu bur- bura burb burd bure buro burr burt buru but- buta bute buto butt d-bo daab daad daae daar daau daba dabb dabo dabt dabu dada dade dado dadu daeb daer daeu daou dara darb dard dare daro darr dart daru data date dato datr datt datu daub daud daue daur daut dbar dbtt dddd ddot ddre ddub dead deae dear deau deba debe debt debu deda dedd dede dedo dedu deeb deed deer deet deor der- dera derb dere dero derr deta dete deto detr deua deue deur deut doab doae doar doat doba dobb dobe dobu dod- doda dodd dode dodo doea doer doob dood door doot dora dord dore doro