-er a-a a-b a-i aaa aab aae aaf aah aai aao aar ab- aba abb abe abf abh abi abo abr aea aeb aee aef aeh aei aeo aer af- afa afb afe aff afh afi afo afr aha ahb ahe ahf ahh ahi aho ahr ai- aia aib aie aif aih aii aio air aoa aob aoe aof aoh aoi aoo aor ar- ara arb are arf arh ari aro arr baa bab bae baf bah bai bao bar bba bbb bbe bbf bbh bbi bbo bbr be- bea beb bee bef beh bei beo ber bfa bfb bfe bff bfh bfi bfo bfr bha bhb bhe bhf bhh bhi bho bhr bi- bia bib bie bif bih bii bio bir boa bob boe bof boh boi boo bor bra brb bre brf brh bri bro brr eaa eab eae eaf eah eai eao ear eba ebb ebe ebf ebh ebi ebo ebr eea eeb eee eef eeo eer ef- efa efb efe eff efh efi efo efr eha ehb ehe ehf ehh ehi eho ehr eia eib eie eif eii eio eir eo- eoa eob eoe eof eoh eoi eoo eor era erb ere erf erh eri ero err faa fab fae faf fah fai fao far fba fbb fbe fbf fbh fbi fbo fbr fea feb fee fef feh fei feo fer ffa ffe fff ffh ffi ffo ffr fha fhb fhe fhf fhh fhi fho fhr fia fib fie fif fih fii fir foa fob foe fof foh foi foo for fra frb fre frf frh fri fro frr h-i haa hab hae haf hah hai hao har hba hbb hbe hbf hbh hbi hbo hbr he- hea heb hee hef heh hei heo her hfa hfb hfe hff hfh hfi hfo hfr hha hhb hhe hhf hhh hhi hho hhr hia hib hie hif hih hii hio hir hoa hob hoe hof hoh hoi hoo hor hr- hra hrb hre hrf hrh hri hro hrr i-f ia- iaa iab iae iaf iah iai iao iar iba ibb ibe ibf ibh ibi ibo ibr ie- iea iee ief iei ier ifa ifb ife iff ifi ifo ifr iha ihb ihe ihf ihh ihi iho ihr iia iib iie iif iih iii iio iir io- ioa iob ioe iof ioh ioi ioo ior ir- ira irb ire irf iri iro irr o-i oaa oab oae oaf oah oai oao oar ob- oba obb obe obf obh obi obo obr oea oeb oee oef oeh oei oeo oer of- ofa ofb ofe off ofi ofo ofr oha ohe ohf ohh ohi oho ohr oia oib oie oif oii oio oir oo- ooa oob oof ooh ooi ooo oor or- ora orb ore orf orh ori oro orr ra- raa rab rae raf rah rai rao rar rba rbb rbe rbf rbh rbi rbo rbr re- rea reb ree ref reh rei reo rer rfa rfb rfe rff rfh rfi rfo rfr rh- rha rhb rhe rhf rhh rhi rho rhr ria rib rie rif rih rii rio rir roa rob roe rof roh roi roo ror rra rrb rrf rrh rri rrr

a-be a-ha a-ii aaaa aaab aaae aaaf aaah aaai aaar aaba aabb aabh aabi aaea aafa aafb aaff aafi aaha aaib aaii aaoe aaoo aara aare aari aaro abaa abab abae abaf abai abar abb- abba abbb abbe abbi abbo abbr abee aber abff abha abhi abho abhr abia abib abie abir aboa abob abof aboh aboo abor abra abri abro aeaf aebi aeer aeio aer- aera aeri aero afaa afao afar afee afer affa affi affo afia afib afif afir afoa afoe afoo afor afr- afra afre afri afro ahab ahah ahai ahar ahfa ahha ahio ahir ahoa ahoe ahor ahra ahre ahrr aiai aiba aibo aiea aiee aiff aiha aiho aiia aiib aiir aioi aira aire airh airi airo aoah aoba aora aorb arab arae araf arah arai arar arba arbe arbh arbi area aree aref areh arei areo arfa arfb arff arh- aria arib arie arif arii ario aroa arob aroe aroi aroo aror arr- arra arre arrh arri arro arrr ba-i baaa baaf baah baar baba babb babe babi babo babr baer baff bafo baha bahi baho bahr baia baib baie baio bair baoh bar- bara barb bare barf barh bari baro barr bbbb bbeb beaf beah bear beba bebb bebe bebi bebo beeb beef beer befa befe beff befo behr beia beir beo- beof beor bera bere beri bero berr bhai bhao bhar bher bhff bhie bhir bhoi bhor bhra biaf biao biar biba bibb bibe bibi bibo bieb bief bier bifa biff bifi biha bihe bihi bio- bioi bira birb bire biri biro birr boab boai boar boba bobb bobe bobi bobo boea boee boef boeo boer bofa bofe boff bofh boha boho bohr boi- boie boii boob booe boof booh boor bor- bora bore borf borh bori boro borr brab brae braf brah brai brao brea breb bree bref brei breo brer bria brie brih brio broa brob broe broh broo bror brrr eaaf eaba eabh eafb eaif eara earb eare earh earo ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eefa eefe eera eero efab efbr efeo effa effi efor ehaa ehea eheh eher ehre eiao eiei eier eiha eiho eira eire eoir eora eore eori eraf erba erbb erbe ereb erei erer eria erie erih erio erob eroe eroi eroo erra erre erro faaa faah faba fabe fabi fabo faeb fafa fafe faff fafi fafo faha fahr faie faio fair fara farb fare faro farr fbar feaf fear feba febo feeb feer fefe feff fefi fefo fehr feia feie feio feir feof feoh fera ferb fere fero ferr ffar ffee ffff ffii ffrr fiaa fiaf fiar fiba fibe fief fier fifa fife fiff fifi fifo fiii fioe fior fira fire foaf foar foba foer fofo fohr foia foie foof for- fora forb fore fori foro forr frab frae frea free frei freo fria frib frie