-er a-a a-b a-i a-t aaa aab aae aai aao aar aat aau ab- aba abb abe abi abo abr abt abu aea aeb aee aei aeo aer aet aeu ai- aia aib aie aii aio air ait aiu aoa aob aoe aoi aoo aor aot aou ar- ara arb are ari aro arr art aru at- ata atb ate ati ato atr att atu au- aua aub aue aui auo aur aut b-u baa bab bae bai bao bar bat bau bba bbb bbe bbi bbo bbr bbt bbu be- bea beb bee bei beo ber bet beu bi- bia bib bie bii bio bir bit biu boa bob boe boi boo bor bot bou bra brb bre bri bro brr brt bru bta btb bte bti bto btr btt btu bua bub bue bui buo bur but buu eaa eab eae eai eao ear eat eau eba ebb ebe ebi ebo ebr ebt ebu eea eeb eee eeo eer eet eia eib eie eii eio eir eit eiu eo- eoa eob eoe eoi eoo eor eot eou era erb ere eri ero err ert eru eta etb ete eti eto etr ett etu eu- eua eub eue eui eur eut ia- iaa iab iae iai iao iar iat iau iba ibb ibe ibi ibo ibr ibt ibu ie- iea iee iei ier iet iia iib iie iii iio iir iit iiu io- ioa iob ioe ioi ioo ior iot iou ir- ira irb ire iri iro irr irt iru ita itb ite iti ito itt itu iu- iua iub iue iui iur iut o-i oaa oab oae oai oao oar oat oau ob- oba obb obe obi obo obr obt obu oea oeb oee oei oeo oer oet oia oib oie oii oio oir oit oiu oo- ooa oob ooi ooo oor oot or- ora orb ore ori oro orr ort oru ot- ota otb ote oti oto otr ott otu ou- oua oue oui ouo our out ra- raa rab rae rai rao rar rat rau rba rbb rbe rbi rbo rbr rbt rbu re- rea reb ree rei reo rer ret reu ria rib rie rii rio rir rit roa rob roe roi roo ror rot rou rra rrb rri rrr rrt rru rta rtb rte rti rto rtr rtt rtu rua rub rue rui ruo rur rut ruu taa tab tae tai tao tar tat tau tba tbb tbe tbi tbo tbr tbt tbu te- tea teb tee tei teo ter tet teu tia tib tie tii tio tir tit tiu to- toa tob toe toi too tor tot tou tra trb tre tri tro trr trt tru tta ttb tte tti tto ttr ttt ttu tua tub tue tui tuo tur tut tuu ua- uaa uab uae uai uao uar uat uau uba ubb ube ubi ubo ubr ubt ubu uea ueb uee uei uer uet uia uib uie uii uio uir uit uiu uoa uob uoe uoo uor uot ur- ura urb ure uri uro urr urt uru uta utb ute uti uto utr utt utu uua uue uur uut uuu

a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aabt aaea aaib aaii aaoe aaoo aara aare aari aaro aart aaru aata aatt abaa abab abae abai abar abat abau abb- abba abbb abbe abbi abbo abbr abbt abee aber abet abia abib abie abir abit abiu aboa abob aboo abor abot abou abra abri abro abta abtu abua abue abut aebi aeer aeio aeit aer- aera aeri aero aeta aeto aetr aett aiai aiba aibo aiea aiee aiet aiia aiib aiir aioi aira aire airi airo airt aita aite aiti aitr aitt aitu aiui aoba aoeu aora aorb aort aout arab arae arai arar arat arau arba arbe arbi area aree arei areo aret areu aria arib arie arii ario arit aroa arob aroe aroi aroo aror arr- arra arre arri arro arrr arrt arru arta arte arti arto artr arua arub arue arui arut at-t ataa atab atae atai atar atat atea atee atei ateo ater atia atie atit atiu atob atoe atoi ator atot atra atre atri atro atru atta atte atti atto attr attu atua atub atur auaa aube auer aur- aura aure auri auro aut- aute auto ba-i baaa baar baat baba babb babe babi babo babr babu baer baia baib baie baio bair bait bar- bara barb bare bari baro barr bart baru bata bate bati bato batt batu bau- baur bbau bbbb bbeb bbet bear beat beau beba bebb bebe bebi bebo beeb beer beet beia beir beit beo- beor beot bera bere beri bero berr bert beru beta bete beti beto bett betu beur biao biar biat biba bibb bibe bibi bibo bieb bier biet bieu bio- bioi biot biou bira birb bire biri biro birr birt biru bita bite bito bitt bitu boab boai boar boat boba bobb bobe bobi bobo bobu boea boee boeo boer boet boi- boie boii boit boiu boob booe boor boot bor- bora bore bori boro borr bort boru bota botb bote boti boto bott boua boue bour bout brab brae brai brao brat brau brea breb bree brei breo brer bret bria brie brio brit broa brob broe broo bror brot brou brrr brue brut btaa btie btob btor btrt bttb buar buat buba bubb bube bubi bubo bubu buea buer bueu buie buir buit buiu bur- bura burb bure buri buro burr burt buru but- buta bute buti buto butt eaba eaiu eara earb eare earo eart eata eate eati ebba ebbo ebbr eber ebit eboe eboo ebor ebro ebru ebur eeea eeee eera eero eeta eete eetu eiao eiei eier eiou eira eire eita eitb eiti eito eitr eoir eora eore eori eota eoto erat erau erba erbb erbe ereb erei erer eret eria erie erio erit eriu erob eroe eroi eroo erra erre erro erta ertu erua erub erur etai etat etbr etee eter etio etoe etra etre etro etta ette etti etto