-er a-a a-b a-i a-t aaa aab aae aai aao aar aat ab- aba abb abe abi abo abr abt aea aeb aee aei aeo aer aet ai- aia aib aie aii aio air ait aoa aob aoe aoi aoo aor aot ar- ara arb are ari aro arr art at- ata atb ate ati ato atr att baa bab bae bai bao bar bat bba bbb bbe bbi bbo bbr bbt be- bea beb bee bei beo ber bet bi- bia bib bie bii bio bir bit boa bob boe boi boo bor bot bra brb bre bri bro brr brt bta btb bte bti bto btr btt eaa eab eae eai eao ear eat eba ebb ebe ebi ebo ebr ebt eea eeb eee eeo eer eet eia eib eie eii eio eir eit eo- eoa eob eoe eoi eoo eor eot era erb ere eri ero err ert eta etb ete eti eto etr ett ia- iaa iab iae iai iao iar iat iba ibb ibe ibi ibo ibr ibt ie- iea iee iei ier iet iia iib iie iii iio iir iit io- ioa iob ioe ioi ioo ior iot ir- ira irb ire iri iro irr irt ita itb ite iti ito itt o-i oaa oab oae oai oao oar oat ob- oba obb obe obi obo obr obt oea oeb oee oei oeo oer oet oia oib oie oii oio oir oit oo- ooa oob ooi ooo oor oot or- ora orb ore ori oro orr ort ot- ota otb ote oti oto otr ott ra- raa rab rae rai rao rar rat rba rbb rbe rbi rbo rbr rbt re- rea reb ree rei reo rer ret ria rib rie rii rio rir rit roa rob roe roi roo ror rot rra rrb rri rrr rrt rta rtb rte rti rto rtr rtt taa tab tae tai tao tar tat tba tbb tbe tbi tbo tbr tbt te- tea teb tee tei teo ter tet tia tib tie tii tio tir tit to- toa tob toe toi too tor tot tra trb tre tri tro trr trt tta ttb tte tti tto ttr ttt

a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aabt aaea aaib aaii aaoe aaoo aara aare aari aaro aart aata aatt abaa abab abae abai abar abat abb- abba abbb abbe abbi abbo abbr abbt abee aber abet abia abib abie abir abit aboa abob aboo abor abot abra abri abro abta 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 aoba aora aorb aort arab arae arai arar arat arba arbe arbi area aree arei areo aret aria arib arie arii ario arit aroa arob aroe aroi aroo aror arr- arra arre arri arro arrr arrt arta arte arti arto artr at-t ataa atab atae atai atar atat atea atee atei ateo ater atia atie atit atob atoe atoi ator atot atra atre atri atro atta atte atti atto attr ba-i baaa baar baat baba babb babe babi babo babr baer baia baib baie baio bair bait bar- bara barb bare bari baro barr bart bata bate bati bato batt bbbb bbeb bbet bear beat beba bebb bebe bebi bebo beeb beer beet beia beir beit beo- beor beot bera bere beri bero berr bert beta bete beti beto bett biao biar biat biba bibb bibe bibi bibo bieb bier biet bio- bioi biot bira birb bire biri biro birr birt bita bite bito bitt boab boai boar boat boba bobb bobe bobi bobo boea boee boeo boer boet boi- boie boii boit boob booe boor boot bor- bora bore bori boro borr bort bota botb bote boti boto bott brab brae brai brao brat brea breb bree brei breo brer bret bria brie brio brit broa brob broe broo bror brot brrr btaa btie btob btor btrt bttb eaba eara earb eare earo eart eata eate eati ebba ebbo ebbr eber ebit eboe eboo ebor ebro eeea eeee eera eero eeta eete eiao eiei eier eira eire eita eitb eiti eito eitr eoir eora eore eori eota eoto erat erba erbb erbe ereb erei erer eret eria erie erio erit erob eroe eroi eroo erra erre erro erta etai etat etbr etee eter etio etoe etra etre etro etta ette etti etto i-be iaaa iaai iaat iaba iaea iaia iara iare iart iata iate iati ibar ibat ibea ibet ibia ibie ibot ibra ibri ibro ibtb ieat ieet ieie ieio iera iere ieri ieta iett iiie iiii iiio iiit iioi iioo iira iita iitr iitt ioba iobi ioee ioii ioio ioit iooi iooo iora iore iori iota iote ioto irae irai irao irar irbe iree irer iri- iria irie irio irob irra irre irri irta irte irti itaa itai itar itat itbe itea iter itet itia itie itoi itoo itor itra itri itta itto o-eo oaer oara oare oate obai obba obbo obea ober obet obia obie obit oboe oboi obor obot obra obre obri obro oera oere oeta oeti oiba oier oiii oira oire oirt oita oiti ooaa ooba oobe oobi ooer ooia oooo oora oore oort ootb orab orae orai orao orar orat orba orbb orbe orbi orbo ore- orea oreb oreo orer ori- oria orie orio orit oro- oroe oror orot orra orri orro orta orte orto otar otea otee oter otit oto- otoe otoo otor otra otre otro otta otte otti otto raab raat raba rabb rabe rabi rabo raer raia raie raii rair rait raob rara rarb rare rari raro rata rate rati rato ratt rbbb rbbr rea- reae reao rear reat reba rebb rebe rebo reeb reet reia reii reir reit reot rera rere reri rero rert reta rete reti reto retr rett riaa riab riai riat rib- riba ribe ribo rier riet riia riot rire riri rita rite riti rito ritt roab roar roat rob-