-er a-a a-b a-i aaa aab aad aae aaf aai aao aar ab- aba abb abd abe abf abi abo abr ad- ada adb add ade adf adi ado adr aea aeb aed aee aef aei aeo aer af- afa afb afd afe aff afi afo afr ai- aia aib aid aie aif aii aio air aoa aob aod aoe aof aoi aoo aor ar- ara arb ard are arf ari aro arr baa bab bad bae baf bai bao bar bba bbb bbd bbe bbf bbi bbo bbr bda bdb bdd bde bdf bdi bdo bdr be- bea beb bed bee bef bei beo ber bfa bfb bfd bfe bff bfi bfo bfr bi- bia bib bid bie bif bii bio bir boa bob bod boe bof boi boo bor bra brb brd bre brf bri bro brr daa dab dad dae daf dai dao dar dba dbb dbd dbe dbf dbi dbo dbr dda ddb ddd dde ddf ddi ddo ddr de- dea deb ded dee def dei deo der dfa dfb dfd dfe dff dfi dfo dfr di- dia dib did die dif dii dio dir doa dob dod doe dof doi doo dor dra drb drd dre dri dro drr eaa eab ead eae eaf eai eao ear eba ebb ebd ebe ebf ebi ebo ebr ed- eda edb edd ede edf edi edo edr eea eeb eed eee eef eeo eer ef- efa efb efd efe eff efi efo efr eia eib eid eie eif eii eio eir eo- eoa eob eod eoe eof eoi eoo eor era erb erd ere erf eri ero err faa fab fad fae faf fai fao far fba fbb fbd fbe fbf fbi fbo fbr fda fdb fdd fde fdf fdi fdo fdr fea feb fed fee fef fei feo fer ffa ffd ffe fff ffi ffo ffr fia fib fid fie fif fii fir foa fob foe fof foi foo for fra frb frd fre frf fri fro frr i-d i-f ia- iaa iab iad iae iaf iai iao iar iba ibb ibd ibe ibf ibi ibo ibr ida idb idd ide idf idi ido idr ie- iea ied iee ief iei ier ifa ifb ifd ife iff ifi ifo ifr iia iib iid iie iif iii iio iir io- ioa iob iod ioe iof ioi ioo ior ir- ira irb ird ire irf iri iro irr o-i oaa oab oad oae oaf oai oao oar ob- oba obb obd obe obf obi obo obr oda odb odd ode odf odi odo odr oea oeb oed oee oef oei oeo oer of- ofa ofb ofd ofe off ofi ofo ofr oia oib oid oie oif oii oio oir oo- ooa oob ood oof ooi ooo oor or- ora orb ord ore orf ori oro orr ra- raa rab rad rae raf rai rao rar rba rbb rbd rbe rbf rbi rbo rbr rda rdb rdd rde rdf rdi rdo rdr re- rea reb red ree ref rei reo rer rfa rfb rfd rfe rff rfi rfo rfr ria rib rid rie rif rii rio rir roa rob rod roe rof roi roo ror rra rrb rrd rrf rri rrr

a-be a-do a-ii aaaa aaab aaad aaae aaaf aaai aaar aaba aabb aabd aabi aada aade aadi aaea aafa aafb aafd aaff aafi aaib aaii aaoe aaoo aara aard aare aari aaro abaa abab abad abae abaf abai abar abb- abba abbb abbe abbi abbo abbr abda abdi abdo abed abee aber abff abia abib abid abie abir aboa abob abod abof aboo abor abra abri abro adaa adab adad adae adai adao adar adba adbi adda addd adde addi addo addr adea adeb adee adeo ader adfa adia adib adie adif adio adir adob adod adoe adoo ador adra adre adro aeaf aebi aede aeer aeio aer- aera aerd aeri aero afaa afad afao afar afdb afee afer affa affi affo afia afib afid afif afir afoa afoe afoo afor afr- afra afre afri afro aiai aiba aibo aida aidb aide aidi aidr aiea aiee aifd aiff aiia aiib aiid aiir aioi aira aird aire airi airo aoba aora aorb arab arad arae araf arai arar arba arbe arbi arda arde ardf ardi ardo area ared aree aref arei areo arfa arfb arff aria arib arid arie arif arii ario aroa arob arod aroe aroi aroo aror arr- arra arre arri arro arrr ba-i baaa baad baaf baar baba babb babe babi babo babr bada badb badd bade badi bado badr baed baer baff bafo baia baib baid baie baio bair bar- bara barb bard bare barf bari baro barr bbad bbbb bbdd bbdo bbeb bd-r bdii bead beaf bear beba bebb bebe bebi bebo beda bede bedi bedo beeb beed beef beer befa befe beff befo beia beir beo- beod beof beor bera berd bere beri bero berr biad biaf biao biar biba bibb bibe bibi bibo bida bide bidi bido bidr bieb bied bief bier bifa biff bifi bio- bioi bira birb bird bire biri biro birr boab boad boai boar boba bobb bobe bobi bobo boda bodb bode bodi bodo boea boee boef boeo boer bofa bofd bofe boff boi- boid boie boii boob bood booe boof boor bor- bora bord bore borf bori boro borr brab brad brae braf brai brao brda brdo brea breb bred bree bref brei breo brer bria brid brie brio broa brob brod broe broo bror brrr d-bo daab daad daae daar daba dabb dabo dada dade dadi dado daeb daer dafa dafe daff dafi dafo daia daid daie daio dair dara darb dard dare darf dari daro darr dbar dbfo dddd ddie ddre dead deae deaf dear deba debe debi deda dedd dede dedi dedo deeb deed deef deer defe deff defi defo deid deie deif deir deor der- dera derb dere derf deri dero derr dfaf dfer dffa dfoe dfrf dfri dia- diab diad diaf diao diar diba dibb dibe dibo dida dide didi dido diea dieb