-er a-a a-b a-i aaa aab aae aag aai aao aar ab- aba abb abe abg abi abo abr aea aeb aee aeg aei aeo aer ag- aga agb age agg agi ago agr ai- aia aib aie aig aii aio air aoa aob aoe aog aoi aoo aor ar- ara arb are arg ari aro arr baa bab bae bag bai bao bar bba bbb bbe bbg bbi bbo bbr be- bea beb bee beg bei beo ber bga bgb bge bgg bgi bgo bgr bi- bia bib bie big bii bio bir boa bob boe bog boi boo bor bra brb bre brg bri bro brr eaa eab eae eag eai eao ear eba ebb ebe ebg ebi ebo ebr eea eeb eee eeg eeo eer ega egb ege egg egi ego egr eia eib eie eig eii eio eir eo- eoa eob eoe eog eoi eoo eor era erb ere erg eri ero err gaa gab gae gag gai gao gar gba gbe gbg gbi gbo gbr ge- gea geb gee geg gei geo ger gga ggb ggg ggi ggo ggr gia gib gie gig gii gio gir goa gob goe gog goi goo gor gra grb gre grg gri gro grr ia- iaa iab iae iag iai iao iar iba ibb ibe ibg ibi ibo ibr ie- iea iee ieg iei ier iga igb ige igg igi igo igr iia iib iie iii iio iir io- ioa iob ioe iog ioi ioo ior ir- ira irb ire irg iri iro irr o-i oaa oab oae oag oai oao oar ob- oba obb obe obg obi obo obr oea oeb oee oeg oei oeo oer oga oge ogg ogi ogo oia oib oie oii oio oir oo- ooa oob oog ooi ooo oor or- ora orb ore org ori oro orr ra- raa rab rae rag rai rao rar rba rbb rbe rbg rbi rbo rbr re- rea reb ree reg rei reo rer rga rgb rge rgg rgi rgo rgr ria rib rie rig rii rio rir roa rob roe rog roi roo ror rra rrb rrg rri rrr

a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aaea aage aaib aaii aaoe aaoo aara aare aari aaro abaa abab abae abag abai abar abb- abba abbb abbe abbi abbo abbr abee aber abia abib abie abig abir aboa abob aboo abor abra abri abro aebi aeer aega aeio aer- aera aeri aero ag-o agag agai agao agar agba agbo agea agee agei ager agga agge aggi agia agib agie agig agii agio agir agob agog agoo agra agre agri agro aiai aiba aibo aiea aiee aiga aigo aiia aiib aiir aioi aira aire airi airo aoba aora aorb arab arae arag arai arar arba arbe arbi area aree areg arei areo arga argb arge argi argo aria arib arie arig arii ario aroa arob aroe aroi aroo aror arr- arra arre arrg arri arro arrr ba-i baaa baar baba babb babe babi babo babr baer baga bage bagg bagi bago baia baib baie baig baio bair bar- bara barb bare barg bari baro barr bbbb bbeb bbga bbrg beag bear beba bebb bebe bebi bebo beeb beeg beer bega begg begi bego beia beir beo- beor bera bere berg beri bero berr bgia biao biar biba bibb bibe bibi bibo bieb bier biga bigb bige bigg bigo bio- biog bioi bira birb bire birg biri biro birr boab boag boai boar boba bobb bobe bobi bobo boea boee boeo boer boga boge bogg bogi bogo boi- boie boii boob booe boog boor bor- bora bore borg bori boro borr brab brae brag brai brao brea breb bree breg brei breo brer bria brie brig brio broa brob broe brog broo bror brrr eaba eaga eage eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eega eera eerg eero egaa egae egao egar egba egbe egea egee eger eggb egge eggi eggo egir ego- egoi egor egra egre egri eiao eiei eier eige eigg eira eire eoir eora eore eori erba erbb erbe ereb erei erer erg- erga ergg ergi ergo eria erie erio erob eroe eroi eroo erra erre erro gaar gaba gabb gabe gabi gabo gabr gaea gaer gaga gage gagg gagi gago gaia gaie gaig gair gara garb gare garg gari garo garr gbag gbbo geab geai gear geba gebe gebi geer gege gegg gego geia geie geig geir geo- geog gera gerb gere geri gero gggg giaa giai giba gibb gibe gier giga gige gigg gigi gigo giog gioi gira gire girg giri giro girr goai goar goba gobe gobi gobo goer goga gogi gogo goog gooi goor gora gorb gore gorg gori goro gorr grab grae grai grbr grea greb gree greg gria grib grie grig grob grog groi groo gror grrr i-be i-go iaaa iaai iaba iaea iago iaia iara iare ibar ibea ibeg ibga ibge ibia ibie ibra ibri ibro ieie ieio iera iere ieri igar igba igbo igea iger igga igia igoe igoo igor igra igri iiie iiii iiio iioi iioo iira ioba iobi ioee ioii ioio iooi iooo iora iore iorg iori irae irai irao irar irbe iree irer iri- iria irie irig irio irob irra irre irri o-eo oaer oara oare obai obba obbo obea ober obia obie oboe oboi obor obra obre obri obro oegb oera oere ogae ogai ogar ogb ogba ogbe ogea ogee oger ogge oggi ogoa ogog ogoi ogra ogre ogri ogro oiba oier oigo oiii oira oire ooaa ooba oobe oobi ooer ooia oooo oora oore orab orae orai orao orar orba orbb orbe orbi orbo ore- orea oreb oreg oreo orer orga orge orgo ori- oria orie orig orio oro- oroe oror orra orri orro raab raag raba rabb rabe rabi rabo raeg raer raga rage ragg ragi rago raia raie raig raii rair raob rara rarb rare rari raro rbbb rbbr rea- reae reao rear reba rebb rebe rebo reeb rega rege regi