a-a a-b a-i aaa aab aad aaf aai aao aar ab- aba abb abd abf abi abo abr ad- ada adb add adf adi ado adr af- afa afb afd aff afi afo afr ai- aia aib aid aif aii aio air aoa aob aod aof aoi aoo aor ar- ara arb ard arf ari aro arr baa bab bad baf bai bao bar bba bbb bbd bbf bbi bbo bbr bda bdb bdd bdf bdi bdo bdr bfa bfb bfd bff bfi bfo bfr bi- bia bib bid bif bii bio bir boa bob bod bof boi boo bor bra brb brd brf bri bro brr daa dab dad daf dai dao dar dba dbb dbd dbf dbi dbo dbr dda ddb ddd ddf ddi ddo ddr dfa dfb dfd dff dfi dfo dfr di- dia dib did dif dii dio dir doa dob dod dof doi doo dor dra drb drd dri dro drr faa fab fad faf fai fao far fba fbb fbd fbf fbi fbo fbr fda fdb fdd fdf fdi fdo fdr ffa ffd fff ffi ffo ffr fia fib fid fif fii fir foa fob fof foi foo for fra frb frd frf fri fro frr i-d i-f ia- iaa iab iad iaf iai iao iar iba ibb ibd ibf ibi ibo ibr ida idb idd idf idi ido idr ifa ifb ifd iff ifi ifo ifr iia iib iid iif iii iio iir io- ioa iob iod iof ioi ioo ior ir- ira irb ird irf iri iro irr o-i oaa oab oad oaf oai oao oar ob- oba obb obd obf obi obo obr oda odb odd odf odi odo odr of- ofa ofb ofd off ofi ofo ofr oia oib oid oif oii oio oir oo- ooa oob ood oof ooi ooo oor or- ora orb ord orf ori oro orr ra- raa rab rad raf rai rao rar rba rbb rbd rbf rbi rbo rbr rda rdb rdd rdf rdi rdo rdr rfa rfb rfd rff rfi rfo rfr ria rib rid rif rii rio rir roa rob rod rof roi roo ror rra rrb rrd rrf rri rrr

a-do a-ii aaaa aaab aaad aaaf aaai aaar aaba aabb aabd aabi aada aadi aafa aafb aafd aaff aafi aaib aaii aaoo aara aard aari aaro abaa abab abad abaf abai abar abb- abba abbb abbi abbo abbr abda abdi abdo abff abia abib abid abir aboa abob abod abof aboo abor abra abri abro adaa adab adad adai adao adar adba adbi adda addd addi addo addr adfa adia adib adif adio adir adob adod adoo ador adra adro afaa afad afao afar afdb affa affi affo afia afib afid afif afir afoa afoo afor afr- afra afri afro aiai aiba aibo aida aidb aidi aidr aifd aiff aiia aiib aiid aiir aioi aira aird airi airo aoba aora aorb arab arad araf arai arar arba arbi arda ardf ardi ardo arfa arfb arff aria arib arid arif arii ario aroa arob arod aroi aroo aror arr- arra arri arro arrr ba-i baaa baad baaf baar baba babb babi babo babr bada badb badd badi bado badr baff bafo baia baib baid baio bair bar- bara barb bard barf bari baro barr bbad bbbb bbdd bbdo bd-r bdii biad biaf biao biar biba bibb bibi bibo bida bidi bido bidr bifa biff bifi bio- bioi bira birb bird biri biro birr boab boad boai boar boba bobb bobi bobo boda bodb bodi bodo bofa bofd boff boi- boid boii boob bood boof boor bor- bora bord borf bori boro borr brab brad braf brai brao brda brdo bria brid brio broa brob brod broo bror brrr d-bo daab daad daar daba dabb dabo dada dadi dado dafa daff dafi dafo daia daid daio dair dara darb dard darf dari daro darr dbar dbfo dddd dfaf dffa dfrf dfri dia- diab diad diaf diao diar diba dibb dibo dida didi dido dif- difa diff diii dior dira dird dirr doab doar doba dobb dobi dod- doda dodd dodi dodo doff doid doob dood doof door dora dord dorf dori doro dorr draa drab drad draf drar drba drda drib drif drob drod drof drra faaa faad faba fabd fabi fabo fada fadd fadi fado fafa faff fafi fafo faid faio fair fara farb fard faro farr fbar fdoa ffar ffff ffii ffrr fiaa fiad fiaf fiar fiba fida fidf fido fifa fiff fifi fifo fiii fior fira foad foaf foar foba foda fofo foia foid food foof for- fora forb ford fori foro forr frab frad fria frib frid frio frob iaaa iaai iaba iadb iaff iaia iara ibad ibar ibdo ibfi ibia ibid ibra ibrd ibri ibro idad idar idda iddo idfa idia idid idio idir idra idrf idro ifaa ifao ifar ifbb ifda ifid ifor ifra ifrb ifrf ifri iida iifa iiii iiio iioi iioo iira ioba iobi iod- ioda iodd iodo ioii ioio ioof iooi iooo iora iori irad iraf irai irao irar irda irdo iri- iria irid irio irob irod irra irri oafo oara obad obai obba obbo obia obid oboi obor obra obri obro odai odbo odda oddd oddi odia odio odir odoo odor odra ofdr off- offa offo offr ofid ofor ofra oiba oido oiii oira ooaa ooba oobi ooda oodi ooff ooia ooid oooo oora oord orab orad orai orao orar orba orbb orbi orbo orda ordo orff orfi ori- oria orid orif orio oro- orof oror orra orri orro raab raad raaf raba rabb rabi rabo rada radd rado radr rafa raff rafi raia raid raif raii rair raob rara rarb rarf rari raro rbaf rbbb rbbr rdfa rdio rfdi rfid riaa riab riad riai rib- riba ribo rida ridd ridi rido rifa riff riia riif riri roab road roaf roar rob- roba robb robi robo roda rodd rodi rodo roff rofo roia roid roif roio roir roob rood roof rooi roor rora rori roro rrad rrif rrrr

-aaa- -abad a-fib a-iii aaaai